Can anyone provide feedback on how this sounds and what it's like to use?

Many thanks!

It won't sound as "hifi" as VSTi's or the Eventide or TC stompboxes or even the $100 Digitech multi-effects. It's a bit noisy.
The advantages are that it has CV control of the parameters. Disadvantage is that only the 2 reverbs utilize the stereo-ins, for most of the other algorithms the inputs are summed to mono. The pitch algorithm only uses the top (left) input. The delay/pitch is a dual-mono effect, where the left input goes to the delay and the right to the pitch-shifter.

I also have the Flame FX-16 which I prefer since it has twice as many algorithms though it is even noisier but it works very well for what I do. It apparently is based off the same chip as the RT60.

here's a nice video I found. I want this thing!

Thanks for the feedback - I have a Synthrotek EKO which is a tad noisy but I kind of like it so this might be ok for me

Cheers!

:-)