I have posted this before, but will do so again.
Here's an SKB case next to a Mono case for comparison - both are for a JP guitar.
| Length | Width | Depth |
| SKB | 42" | 17" | 6" |
| Mono | 45.5" | 18.5" | 7.5" |
My opinions below!
My Mono pros:
1) it's lighter than the SKB case by 2-1/2 pounds, which is awesome!
2) supposedly provides equal or greater protection for the instrument than the SKB did.
3) it's a legit case, not a bag, and it allows for the tremolo bar to remain on guitar when closed.
4) zippers mean no more busted latches and no more forum/FB threads like "my dealer shipped me my guitar but the case is locked and the keys are inside!"
5) large padded zipper pouch on front will fit books/folders/sheet music/tablet and has a second smaller mesh pouch inside that can fit a few packs of strings, back plate, or small tools.
My Mono cons:
1) it's noticeably bigger in every dimension
--this means a decent increase in shipping cost to/from dealer, larger storage space requirements, may not fit in vehicle as easily for gigging musicians, may not fit under the bed if you keep it there, etc
2) interior compartments are both angled/tapered and a pack of EB strings needs a gentle squish to fit in either one. A pack of strings in cardboard might need to have the corners bent to fit. You can just barely fit a spare backplate if you like to keep one in the case with the instrument. Yes, you can keep strings/plate in the pouch outside, but for me this always seems to kink strings when using the pouch on a gig bag.
3) Interior compartments are on the smaller side and fitting a strap along with cable, strings, and a pedal might be an issue (if you are already using the front pouch for a tablet/music, etc).
4) no provisions for shoulder straps means that you are carrying this just like you carried your SKB case
5) zippers appear to be of good quality but they are still zippers.
6) I will miss the entertainment value of forum/FB threads like "my dealer shipped me my guitar but the case is locked and the keys are inside!"