I never needed one, but did like the Q20, and mourn it's sale.
But recently have decided to run a PA using the good old DAS mixer. I demo'd our singers Q2 and was shocked that it sounded as good as the Q20 as long as you use the whole amount of DSP power for a single stereo reverb.
What's great for us is as usual people think it's old and no longer good ( like SFP

Anyone wanting to route a quality sounding reverb using ADAT I/O's needs to hear one of these. Sure it ain't no Lexicon, but we all know how much trouble DSP reverbs can be if too many are used. This baby sounds fine, and will ease the DSP load, and at the price they are going for on ebay, it's definately a sore dick deal.
I will be using a total of four of these and automate their presets and levels from a hardware sequencer. They also have a really nice chorus, but for delays I prefer SpaceF and Celmo, ankyuvarymush.