Jeff Rowland or Mark Levinson???

I'm looking to buy a new amp,I took a Jeff Rowland home and it sounded great. The Mark Levinson is 150lbs you just can't take one home to try, does anyone own either or and can compared these two amps company's? Thanks
IMHO the Rowland is sweeter, more musical, draws me into the music and does everything well. It will give you years of enjoyment. It is not as analytical or dry as the Levinson. Micro details, soundstage, transparency to die for. First amp I've owned that gets more enjoyable as time goes on. While it is not the most dynamic amp, it doesn't lack dynamics, and never assaults, or causes listening fatigue.
Fpeel. I have the new Concentra II, 150 watt integrated. I've owned 10 amps in the last two years, (crazy) including 2 Plinius, 2 Classe, a Sim W5, a Krell and a Bryston. Sad to say, but I got tired of every one. I was frustrated and began to think I would never find an amp I would be happy with. The Rowland just gets more enjoyable as time goes on.
Thanks for the quick response. I'm considering buying a Rowland, albeit an older model, and will probably be unable to listen before buying. The extra data points are appreciated.