I just got back from a service call (I'm at work) and my new Zoom B2 was on the desk in my office. Very cool. I opened it up and had a gander at it. It is built very solid. Battery access is very easy to get at. AC adapter is provided though too. I have a gig tomorrow night and I won't have much time to really program any presets by then, but I should have some fun with it tonight. I do have two gigs next weekend, so I'll spend the weekend and next week programming it. I'll post a review of it after next weekend's gigs. Keep in mind, aside from the amp modelling and effects I had on a BAM 210 combo a few years back, I've always been an effects-less bass player for the past 25+ years. So my review will not be coming from an effects guru, but perhaps it will help someone who is looking for a multi-effects pedal or someone new to effects, and what they could expect from this unit.