To answer your question, I would go with HX Effects, as anything more would be overkill for acoustic guitar, both in terms of features, cost, and footprint. Personally, for acoustic duo acts, I use a Line6 POD HD Desktop with the small FBV pedal on a semi hollow body acoustic for coloring leads with a bit of drive and spacious triad rhythm accompaniment for another player. He plays through a Fishman ToneDEQ which is perfect for most acoustic guitarists that want simple knobs for compression, EQ, reverb/delay, chorus/vibrato, and Lead Boost and monitor. We use both units direct to PA.