Echo, echo. Just got a Mono double bag this week. There are a few small quirks, but in terms of fitting and protecting two instruments, I've not seen its equal. Well worth the investment. It's also a very light bag - by far the lightest double bag I've tried.
Just for the record...the quirks:
- The size of the main pocket (as Ken mentioned) is a bit small. No huge deal, but last night I did have trouble squeezing my Radial JDI in there with two instrument cables and a microfiber towel, and it's certainly not a big box.
- Shoulder straps. Wearing this thing, for me, definitely involves both straps, a la a backpack. Tighten them too much and it's hard to get my arm behind the second strap. Loosen them too much and the bag sits really low, making it difficult to walk comfortably. Also, the fabric loops and the plastic rings, where the straps meet the bag, don't instill gobs of confidence. They may well be much stronger than needed, but to my eye they don't look like it. This is one area where I'll be keeping a close eye on things, and it just seems out of place on a bag that is otherwise incredibly well constructed.
Otherwise, and certainly compared to the competition (I wanted to try an iGig bag, but couldn't get my hands on one), this thing rocks. The key thing for me was comfortably fitting two instruments - and in that regard the Mono bag scores a perfect '10.' Some of my basses, like my 35" Mike Lull M5V, are pretty long. It fits in the bag with a bit of room to spare. Here's a lame cell phone shot from last night:
Bottom line - great bag and I'd totally recommend it. Working backward from Kesslari, I've also ordered a single bag and am anxious to give it a run.