I've owned three of their amps, and used them with several different sets of speakers. I think they are really good, and great for the cost. But, I also found them a little fatiguing. I think it's because they are a little on the "clinical" side. In my system, especially with B&W speakers (805N, 803N, 9NT), I found it to be a little bright, and crisp. You won't describe them as "warm" for sure.
In the end, I think it comes to synergy. It was a good match, but not best possible match with B&W. They could match well with warmer sounding speakers. If you can audition them, then there's your answer.
In the end, I think it comes to synergy. It was a good match, but not best possible match with B&W. They could match well with warmer sounding speakers. If you can audition them, then there's your answer.