Mosfet amps A true compromise betw. tubes and SS?


I heard from several people that Mosfet SS amps are a nice compromise between tubes and SS amps.
There is one manufacturer in particular I am interested
http://www.wbe-audio.de,s croll down to Fusion 700 (its a German made amp, but he has an English web page) who calls his hybrid amp a Mono tube mosfet amp.
I would really appreciate if someone who has more insight would tell me a bit more of advantages and shortcomings of this design and if the claim: "sound of tubes with power of SS" is true or not. Also I would like to know if these are fast amps, as I plan to maybe use them with my ML Prodigy, should the Wolcott amps, I bought recently, not work satisfactorily.
tekunda
Hey Zaikes, very good..no great answer. You've answered my question from your many years of experience. I'm for tubes all the way. I own a "100" watt ss Rotel amp which i can not listen to for more than ..oh like say 10...no 5 minutes and then fatigue sets in. Now with my "40" watt tube amp i can listen to for hours happily. And the 40 watter is their entry level model so future upgrades will make the speakers sparkle even more. So as you say there is "tube sound" and there is "ss sound" , and in both categories not all labs are equal..more so when it comes to tube design.
Zaikesman, thank you for caring. You are absolutely right. Its kind of crazy to worry about new amps without even having auditioned the new ones I have bought.
The reason is not an advanced stage of Audiophilia Nervousa though.
I am in Germany right now for a short visit and the guy who makes the Mosfet amps, tries to convince me that his amps are really worth taking a shot. The only problem with this is, that my system is in Florida. Before I go through the trouble and ship the German made amps over to the US for an audition, I hoped to find out what people in general have to say about such a design.
If most people would have agreed that a Mosfet is nothing I should look into, I wouldn't have bothered even thinking about having these amps shipped. But from what I read here, I planned my startegy now, which is to audition the Wolcott first and only if I am absolutely not happy, have the German amps shipped for a further audition.
So, will you audition these amps in Germany, and if you do, let us know what you think? Good luck, Z.

P.S. Tweek, I must admit that in this thread as well as our previous encounter, I have had the darnedest time trying to follow you. Is it me? Or are you crediting me with saying things I don't think I said? (Or maybe you're just having me on - er, "Tweek"-ing me!) Oh well, I've got to admire your enthusiasm - say, maybe while he's in Germany, Tekunda can give a listen to those speakers you saw on that website (now, what were they called again?)!
Personally I'll take a mosfet design over bipolar or glassware any & every day: I just love the mosfet sound & everytime that I try out something else I've always eventually gone back to mosfet's. I've gone through a lot of equipment over the years, but mosfet has always turned out to be my common demoninator. You get the typical bass control & high speed transient response of solid state with some of the warmth of a tube based design, but without the heat inefficiency, microphonics, noise, & unreliability of tubes.
I will totaly agree with Bob Bundus. Bipolar amps sound dull in comparison to Mosfet amps .Mosfets characteristics give high thermal stability and very high output current and voltage with reliable operation. Power Mosfets are sonically superior to the Bipolar transister, but have the sweeter qualities found in tube equipment.