My #1 amp is now a Marshall Origin 20 which doesn't have onboard reverb. Looking for something that primarily does a nice spring reverb emulation for an always-on effect - anything beyond that is gravy. Would prefer something slightly tweakable but don't need something with six knobs and three toggles. Don't want to spend a ton but am willing to spend a decent amount, plus I'll probably buy used anyway. At this point top contenders appear to be EQD Ghost Echo or Wampler Faux Spring - would love to hear any thoughts on these or other recommendations (maybe the Boss RV-6 or one of EHX's options?). TIA.