They are cool but... I've had a boogie 400+ all tube amp since '89. I switched to solid state with tube preamp for about 10-15+ also at times using simulator amps. I thought it sounded great, lightweight, easy on the back, and sounded just like the real thing. About 6 yrs ago I dusted off the old broken boogie tube amp and had it serviced and tubes replaced. When I got it back I was Blown Away with the tone!!!. Then I started playing solid state next to tube to compare. It was no contest for me. I've tried many of the solid state boggie amps and they all sound great until I compare side by side to a tube amp like 400+, ampeg fliptop etc... Yes there is love for the subway but there is nothing like the real thing imo..