I currently own maybe half a dozen various EHX pedals, which I like a lot and use frequently. However, I understand why EHX may have a bad reputation in terms of reliability. I think it may be an issue with some models more than others, but I definitely have experienced a higher than average failure rate with their stuff.
Last year I bought a Mel9 - it was defective right off the bat, so I sent it back to the retailer for a replacement. The second one was funky as well, so it went back also. I probably should have thrown in the towel there and obtained a refund, but since I really liked the pedal I opted for a third replacement (!) It worked well for a while but eventually went bad also, fortunately when it was still under warranty. I sent it to New Sensor (the EHX parent company) for repair and it's been ok since, at least as of the last time I plugged it in.
Prior to that, I had an Enigma pedal that also failed while under warranty and was sent to New Sensor for repair. On the upside, I will say that the repair turnaround with New Sensor was fast and they covered shipping. In addition to those, I had Bassballs and Holy Grail pedals that died while out of warranty. I opted not to get those repaired since it wasn't cost effective relative to their value at that point.