I don't know if there are many pedals that were designed to sound great with a lot of differently-voiced amps. Some pedals sound great with Fender BF or tweed amps, others pair well with Vox amps, still others run well with Marshalls, etc.
For me, it's a matter of matching up a trebly/bright pedal with a warm/muddy amp, or a warm pedal with a bright amp; as well as a scooped amp with a mid-humped pedal, etc. etc...
So... I would rather rate a pedal as suitable with my specific amp and guitar rather than using the terms "over-rated" and "under-rated."
I've only been talking about tone and sound. Build quality and QC is another matter...