I've used an EHX Holy Grail Plus, which is fairly compact and has a blend knob (which can go up to 100% effected, which I'm assuming might be useful for your style) in addition to decay time and mode selection. The Hall setting's nice and the Spring sounds authentic (unlike the equivalent on Boss units) but the only drawback is it needs its own individual 9V supply. The connector's the standard centre-negative barrel type, but daisy-chained with other pedals it adds an annoying background whine which gets louder when you add gain/distortion. Other than that, the HG+ is, in of itself, a great little box.
Because of the daisy-chaining noise issues my HG+ is now off my board and I use Boss RV-5s for both guitar and bass. I personally like them, but the Spring setting is useless and you need to roll off the tone knob to keep the decay warm-sounding. They don't do 100% wet either, which is why I keep an RV-3. You might have guessed I'm into reverb-y post rock swashes of sound too.
The TC Electronic Hall of Fame is another pedalboard-friendly box that I was tempted to try out, but never got around to it.