This is the first reverb and/or delay pedal I've bought in a very long time, so I don't have much to compare it against. Keep that in mind. However, for me it works wonderfully.
Combining Reverb with Delay is a great idea. In my field - ambient guitar - it is very common to use these effects together. So to me it made sense to buy a pedal that combines them both.
You can achieve lots of different sound combinations with this pedal. It has all the knobs you expect from a complex pedal lke this: tone, time, tempo, level etc. There's lots for you to experiment with. To me the sound is great, there's no unwanted noise or hum.
It has stereo input and output, ... as well as mono of-course. It's a good pedal to use at the end of your pedalboard if you want to record in stereo.
The right footswitch is the on/off or bypass for the pedal, the left footswitch is for setting the tempo; the delay time of the delay effect.
The tap in the middle gives you three different delay+reverb combo effect types:
1 = reverse delay + slow attack reverb (good for swells)
2 = analog real echo + modulated reverb (i.e. the "normal" setting)
3 = analog delay + shimmer reverb (for some bling)
The main challenge with this pedal is learning how to use it. The manual only shows what the knobs are for. There's comparatively little coverage of this pedal on the web. It doesn't help that different manufacturers use different terms for things. I mainly used experimentation + youtube videos to learn how to use this pedal. You get the hang of it eventually.
In summary, to me it's a great pedal. I couldn't find anything wrong with it, things to complain about. As an ambient guitarist it gives me a tonne of settings to play around with. And the quality feels very solid. Plus it looks great.