The Omega Hotel is on the tree-lined street of Sussex Gardens, it's location is great (especially if you're using the Heathrow Express at nearby Paddington Station). I had a double room to myself which was very nice, the bathroom seemed fairly new (although water pressure from the shower could have been better). The only thing is, if I'd been sharing the room it may have felt a bit cramped - but you'd probably be too busy exploring the city around you anyway.
I was on the top floor, so had a good view of the street below me. The staff were very helpful and polite and The Omega Hotel makes an amazing breakfast. There is also a TV in every room.
Theme: Hotel
Comparison: about average
Directions: Paddington (3mins walk from Paddington station)