ATI amplifiers

Does anyone have experience with ATI amplifiers? Specs look good and price seems reasonable. 
Thank you 

I have a 1502 which I like alot. I have had it for 6-7 years and it has been very reliable and a solid performer. I cycle it in and out of my rig along with a rebuilt Mac 250 and Marantz PM8500. I agree it is under-rated by audiophiles. 
ATI is primarily a manufacturer, making amps for many well known companies. Their own line is also very good. They are mostly known for home theater rather than 2 channel. They generally have a pretty neutral sound. I have a 1806 which has worked flawlessly for me. Very good power and pretty neutral.