We spent 8 nights at the 'b' in a triple room. Hotel rooms in Japan aren't really designed for 3 so it was definitely tight on space but would have been fine for 2. This isn't a luxury hotel, yet it's spotlessly clean, rooms are very comfortable, beds are comfortable.

Breakfast was included in our room rate, and the buffet has a large variety of items, both Japanese and Western (a bit more of the Japanese). The food quality of the buffet is very high - much higher than the typical "free" breakfast in the US.

The room had wired internet which worked very well. Wireless internet is not available.

Staff was always polite and helpful. Housekeeping was great but be aware that they err on the side of caution so if you want something thrown out place it in the trash or make it very obvious that it is garbage.

The bathroom is very interesting. It looks like a pre-fab unit placed into the room and it is somewhat narrow but contains a Toto Washlet (the Japanese toilet that washes your butt for you), a sink, and a really nice shower with rain head, hand wand, and 3 extra forward-facing water jets.

Location was OK. It's very close (5 mins walk) to Ikebukuro station, which gives you easy access to all of Tokyo. The specific location is at the edge of a slightly seedy area but this is Tokyo so it's not unsafe. In any case a much nicer part of Ikebukuro is only 5-10 minutes walk away,

The hotel has little in the way of facilities but there is coin-op laundry and a free terminal with printer in the lobby, both very useful for travelers.

We had no problems with our stay and the price is right.

The B Ikebukuro is located just 3 mins from the Ikebukuro station. The free wifi is in the lobby area only, and in the room, broadband internet as well as usb wire is provided. Vending machines are everywhere, amenities are provided as well. There are also many 24 hour eateries nearby the hotel, which makes it extremely convenient for late-night owls.
Moreover, PARCO, Seibu, Tobu, Sunshine City and Marui makes great shopping experiences without going all the way to Shinjuku or Shibuya.
There are also 2 electronic shops nearby which saves you the time travelling to Akihabara. Animate, K Books and Books Off are nearby as well, you might as well save the trip to Akihabara.
Other than the fact that the hotel is in a good location, the hotel provides great services as well. For instance, I had to make a 3D2N trip to Hakone, and I emailed the hotel in advance to ask if I could leave my luggage at the hotel, as I intended to stay at the hotel again after my trip back from Hakone. The hotel was very obliging, thus I was able to leave my huge suitcase in Tokyo during my trip to Hakone.
I would stay in this hotel again when I go to Tokyo.

Make sure you take the east exit. Look around the Ikebukuro station as long as it takes until you find the east exit. This is very important unless you have a phone capable of gps in Japan. If you go out the east exit, the directions are simple, take a left and just follow the road until you run into it, if you go out any other exit, you'll be wandering for awhile.

I liked the area alot, really cute and a great area for getting your first taste of japanese city culture without being overwhelmingly crowded, I've never felt unsafe in Japan.

From other reviews I expected the breakfast to be more western than it was. I knew it was a blend but I wouldn't say it's particularly something that a typical westerner would find familiar, except for the cereal. For example, I open up a hot dish cover and it's hot dog slices. Don't get me wrong I love japanese food and I loved this buffet (except for hot dogs), but to say it is surprisingly western gave me a different expectation. Maybe it is western relative to other places in the same price range-- like each morning I had a hard-boiled egg, a couple rolls that to westerners might be considered "dinner rolls", a fried vegetable that I never identified but was delicious, some white rice and coffee jell-o. Everyone will be able to find something they want to eat, but don't think that western means bagels and sausage. I do imagine the buffet changes up quite frequently though, so maybe another time it's different stuff. I was not disappointed at all, I just want to give the clearest picture I can.

The air conditioning in the room did not get very cold, but cold enough to provide at least some relief from the August swelter. I still wanted to take colder showers so as to not heat up the room any more and drying my hair with a hairdryer was only rare as it got kind of sweaty.

We had the three slightly-larger-than-single-beds room (the "triple") and it was really just like one enormous bed against the wall. We were all comfortable though, I just might not suggest this if you don't know the people you're rooming with very well.... you'll be stepping over each other constantly.

I made a reservation on Rakuten, and accidentally reserved a semi-double room instead of a twin bedroom. The semi-double room was too small for both my mother and I. The staffs at the front desk were nice, helpful and friendly when I checked-in, but were not so friendly when answering my inquires about the 間違った reservation. I would appreciate this hotel more if the staffs had shown more empathy and helpfulness regarding this incidence. Aside from this unhappy event, and the too-small room (for us), the hotel's well-decored, close to the Ikebukuro Station, with convenience store (Family Mart), several restaurants and shopping centers within walking distance.