We stayed here twice on our holiday and the staff were very nice.
They only have traditional rooms now so each pair stayed in a ?6? mat room with 2 very comfy futon, a small table, tv, hairdryer and tea making facilities.
It became my friend's and my habit to buy fabulous cake from Ueno JR station and then take them back to the Ryokan to have after dinner whilst sitting at the table and watching bad Japanese game shows and soap operas (Watch channel ?NHK5? at 8pm on a Thursday evening and make up your own explanations of what's happening, it's hilarious.).
The futon were very comfortable ones. We stayed on other futon but at the Ryokan Shigetsu Asakusa I never felt like I was sleeping on the floor after a few days. By the end of the holiday I was rather longing for a non-wheat filled pillow but these were still comfortable.
The rooms were cleaned daily, including fresh soap, which seemed a bit wasteful. The bathroom had a deep hip bath, hose and shower head shower and toilet cunningly packed together but still only enough room for one person at a time.
However, when at the end of the trip one of our party became very ill (and was almost admitted to hospital and forbidden to fly by their doctor) the staff allowed us to have a chair in the room for their greater comfort and allowed us to use the room at all times. They even allowed us to leave our companion in the room whilst we took the luggage to lockers in Ueno station, before we came back to collect our companion and pay our bill, although I could tell it made the new girl on the desk nervous.

The Ryokan also has a traditional bath on the 6th floor which is heavenly. Take a visit even if you are shy of public nakedness, we always found it empty and it was deep, with a safety rail and a step for those who might have difficulty. There is an outer room for your things with shelves, a mirror, counter and scales (which aren't very accurate and tend to estimating a bit under) and in the bathroom there are 3 shower pieces, shampoo, conditioner and body wash and a bath about 1.3x2m and about 60cm deep. The bath is filled with deliciously hot but not overly so water during all open times.

We didn't eat there so I can't comment about the food. Although there is always fresh free water and nibblies in the room everyday.
Don't forget to take the door code with you if you might be out after 10.30, it's locked at 11pm and if you take longer at the Lawson than you expect you might get locked out. ^^ I got a call at 11.10 from one of our party who'd had this happen and forgot to take the card with the code on it.
The rooms lock and you are asked to leave it at the desk when you go out. The keys of people not back by 11pm are left on the counter for them to pick up when they get in. This is actually a neat security measure because no one can get the key copied whilst they're out but no one has to wait up for you. :)
The lift is a bit temperamental about weight and won't take more than 3 people at once, 2 with luggage. It's definitely safe though.
There is a computer in the foyer but the internet is rather slow and there is no printer but there is a note pad and pen. Also free tissue packs in the foyer, take some as the public toilets of Tokyo also often have NO toilet paper or hand drying facilities.

We were able to pay with international VISA cards (I used my ING Direct card and payed in Australian Dollars.) and in our preferred currency.

There is a post office with staff who can speak some english nearby (I loved the post office atms because I could use my card and I only got charge AUD$2.50 for it), also lots of food close and a coil laundry with good dryers (on the main road which has Denny's on a side road moving north (right from the main temple gate whilst facing the road) on the side of the road opposite the road with Denny's on it). That laundry is cheap, takes 100yen coins and has a table, stools and a vending machine for washing powder.

If you have plenty of money go behind the main shrine in a straight line until you hit what appears to be a T junction if you look closely there is in fact a lane and on that corner or one nearby is the Omiya, a fabulous french restaurant with food even for very fussy eaters, every course is a master piece and the head chef speaks English and French.
(Address Restaurant Omiya
2-1-3 Asakusa
03-3844-0038
11:30AM-2:00PM, 5:30PM-8:30PM
Sundays/ National Holidays:
12:30PM-2:30PM, 5:00PM-8:00PM
Closed Mondays and Tuesdays (irregular)
More info and a pic at http://www.asakusa-e.com/shoku/a_e.htm )