Electro Harmonix Holy Grail Neo

As with all EHX pedals it's a very solid construction. There's only a single knob and a 3-way switch so it's simple to adjust and there's no risk of the pedal going silent. The reverb itself is a bit uninspiring though and the Holy Grail sound is overhyped. If this is exactly the sound you want then it's a great pedal, but if you want to experiment a bit you should really get something more versatile.