Great little English hotel near the Coliseum and Forum. Was there a few years back, returned for a 10 day stay and then overnight a couple weeks later. Staff is great, hotel is small but very nice. Stayed in room 66 as a single, loved it. Great view and very quiet. Stayed in a terrace room last time, room 62. Worth the extra money in good weather if you are a couple.
If you love ancient Roman history, this is a great location. Perfect for me because I was there for the Roman ruins. If you are going for the Vatican, be aware the Metro is maybe a 6 block walk. Restaurants around the hotel were so-so but so many good ones in Rome it doesn't matter. I recommend the little bakery on via di San Giovanni in Laterano and a little wine bar around the corner, the Kottabos I think.
The staff is great. Speak English, very helpful and friendly. I left my GPS device in my room and they fedexed it to me. I was surprised that it was noisy my last night. Come to find out it was Mrs. Kahn's (the owner) 80th birthday and the hotel was filled with relatives from all over the world. They were nice enough to invite me to join them, which I really appreciated although I didn't do so.
I recommended the Lancelot to a friend who stays only in Marriott hotels. He loved it much to my surprise. But be aware that this is not an American hotel but a European one. The rooms, while very nicely done, may seem small if you've only stayed in American hotels. But for the price, location, staff friendliness, and value, you can't beat it!