Reverb SOLO is a huge favorite of mine. Which is probably obvious given that it’s on this list.
The reason I love it is because it’s so simple. With just two changeable parameters, it makes setting reverb ridiculously easy.
The size knob changes how big the reverb sounds, while the dry and wet knob changes how much of the non-reverberated sound you can hear.
Reverb SOLO is great for those times when you want a reverb on an instrument but you don’t want to spend too much time dialing it in.
Maybe you’re in the middle of recording and you want to throw some reverb on the vocals. But you don’t want to get sidetracked.