Bryston B60 - Is it worth it?

Pair it with good front end and relatively effecient speakers (87db+, but in your small room, lower would work, too) and be happy. It will make great music without fuss or bother. It will be a very good match with BBC-style speakers such as Spendor or Harbeth. My B60 is very happy driving SP1/2s - in your room the S1, S3/5, SP3/1P or smaller Harbeths would probably sound great.

Agree with Ellery911,Ive had my B60 for a year now and love it. However, like most with this bug I am wondering about all the other amps out there! I am using mine in a 16x18' room with cathedral ceilings with Thiel CS1.5s. This little baby does a nice job with them but I wonder.....
Small room, should provide plenty of guts, the sound is up to your ears only (and assoc. equipment). Don't sell the amp short.

Is this a powerful amp for 60 watts?

I had the B60 paired up with my Totem Arro's for about a week. I thought I found my match made in heaven - until I listened to the Blue Circle CS integrated. While the CS does not have a headphone input it does however best the Bryston in pretty well all areas of the audio spectrum, and it was half the cost in Canadian funds.

Belated comments:
Superlative midrange and treble. Especially midrange.
  Bass? Well you can't have perfection for this price (or for the price it retailed for 15 years ago). 
   The preamp stage is excellent. But, if you are so inclined, you'll find it is possible to improve. I've enjoyed the B60 as integrated for 15 years and it was great, but when I bought a Bel Canto dac3, which is also a preamp and ran it directly into the Bryston amp -- wow.  You know the audiophile lingo, that strings were more string-y, piano more piano-y, and a host of other small but audible improvements. Conclusion, the B60 amp stage is a hidden gem. 
   As always, tweaks are worthwhile to bring out the best.
   Cheers.