I just got one of these about a month ago for my electric gear. About the sweetest sounding reverb I've ever had - definitely the best sounding that didn't come in a tank in an amp. Tiny and reasonably priced too. It can go anywhere from very subtle to completely over the top, but anywhere you set it for your preferences it sound great. I don't plug in my acoustic much, but it sounds great with it too.
https://www.mrblackpedals.com/products/mini-reverb
I had a holy grail for a while and thought it sounded good, but found the adjustment was really tough to dial in - a very small turn would have a much larger than desired impact. IIRC, it was kind of noisy too...
-Ray