These can be fabulous sounding and a great way to get tube sound into speakers that otherwie aren't tube friendly (or which would require more tube power than you can afford). But it is all in the implementation. Don't know the Bada so can't comment on it.
I also have had great experiences with separates that are hybrids. Really love my hybrid Musical Fidelity kW preamp, and my hybrid Butler 2250 power amp.
These hybrids may not give you the ultimate of what is considered "tube" or "SS" sound, but they also tend to avoid some of the weaknesses that are commonly associated with tubes and solid state designs as well. A matter of what mix of qualities in what proportions works best for your system and your personal preferences.
I also have had great experiences with separates that are hybrids. Really love my hybrid Musical Fidelity kW preamp, and my hybrid Butler 2250 power amp.
These hybrids may not give you the ultimate of what is considered "tube" or "SS" sound, but they also tend to avoid some of the weaknesses that are commonly associated with tubes and solid state designs as well. A matter of what mix of qualities in what proportions works best for your system and your personal preferences.