I'm really happy with this module.
I had a few concerns before I got it:
The first concern was the length of ADSR faders and that short times will be hard to set. Fortunately, I have no problems setting very fast and snappy envelopes for fast basslines in 140BPM genres.
The second was the LFO. Here I would prefer one or two speed settings and a longer range instead of 3 degrees of speed. I like to go from very slow to very fast, and 140 can't do it. But LFO is still usable and works very well when controlled by one of ADSRs of the same module.
On the bright side, the highest speed seems to be faster than what is written in the manual/specs.
The third concern was colour because I'm not a big fan of grey. But it's fine at night with lightened leads on faders.
The manual gate is excellent. Very fun to manually trigger ADSR to change LFO speed. I'm overusing it all the time now.
Build quality etc.: all is fine. Nothing to complain about.
If you're looking for ADSR module and you care about your budget, you can't go wrong with this module. 2x ADSR and LFO in that price range is very rare or maybe even non-existent besides Behringer 140 (I'm a Eurorack newbie, so I don't know the market that well).