We stayed here as part of a tour- as did pretty much every other guest at this hotel! I think we overran the place!
It's location is not in the city centre, although it is easy enough to get in on the efficient Metro. St Petersburg is a fairly easy city to Navigate, and fortunately they have English translations on their Metro maps.
The Metro station was about a 10min walk away. Inbetween the hotel and the metro are several restaurants and convenience stores, so it was easy enough to find somewhere to eat.
The breakfast was quite poor. Most of the food was barely edible, so we found ourselves eating Pancakes every morning (a Russian staple!).
The bar at the hotel was reasonably priced, and is open 24hrs, so we could all pop in for a drink no matter what time we got back.
The rooms themselves all smelled of cigarettes- but hey it's Russia- everything smells like smoke and vodka!
Aside from that, they were clean enough, although certainly nothing special.
Overall, it was pretty much what I expected of a Russian 3 star hotel.

I stayed at the Hotel Anderson with a friend for 3 nights; the room was small but adequate - two twin beds on either side of the room. There was a small TV, which we never put on, an armoir, a small table, and a clean bathroom. The beds were comfy and the room was clean, except for a set-in stain on the rug. Also, if you stay at the hotel during summer/early fall, please use the plug-in Raid provided - it is a mosquito repellent. I liked the location because it was away from the hustle and bustle; it was a minute's walk to a bus stop and about a 10 minute walk to the metro station. There were shops and restaurants all within walking distance. Breakfast was included. The restaurant also served dinner, but I never ate there, so I cannot attest to the food. WiFi was available in the lobby, as well as one computer with internet access, all free of charge. Something I had to get accustomed to was the cigarette smell, not just in the hotel, but everywhere. Smoking is allowed in public places in Russia, although they do have non-smoking areas.

If you want a luxurious hotel, this is not the place for you; but if you want a place to hang your hat, then this will definitely serve your needs.

Anderson hotel is close to the metro and just 2 stops from the city center. There are a lot of shops, supermarkets, and restaurants nearby (go to Stolle for great pies!!). The staff was very friendly, helping us book tours and transportation. Breakfast was decent, with the strange offerings I had come to expect in Russia (noodles and rice?). The entire hotel does smell of cigarette smoke, which is unpleasant if you are not used to this, but also expected (one morning my "clean" bath towel reeked of smoke - unpleasant to say the least).
Our major qualm was with the cleanliness. Although our beds were made and towels changed each day (we were there 4 nights), sheets and comforters had set-in stains. I would be surprised if any vacuuming was done. And our glasses were not washed or replaced, even though we had clearly used them the first night. Although we did not see any bugs in the room other than mosquitoes, they must have a problem because there was a Raid plug-in in the wall.
Also the walls are thin, so be prepared to hear everything happening in the rooms around you and in the hall.
I'm not normally a complainer, but with the juxtaposition of the great staff and lobby area with the not-so-clean rooms was a surprise and a turn-off.

The hotel is quite far from the central city but is close to lots of shops and is a short walk from a metro station that will take you straight into the centre. The staff were very helpful and we booked several day trips with them - they even made us packed breakfasts to take with us when we said we were leaving early.