I received a parallel 26650 box from BCBoxMods last week. First impressions of it are very good. Clean workmanship & high quality internals. As has been mentioned, great warranty. Quick build (less than 2 weeks) and good communication about shipping. Oh yeah: sale prices right now make this thing a real deal (75 bucks + 5 for the voltmeter!). Waiting on series 26650 box from them right now.