I purchased the Guitar Sleeve 2.0 as a compact, light weight alternative to my rugged SKB hard case. Specifically for commuting (public transport, bicycle, walking).
Sleeve does its job perfectly, carrying my electric guitar, picks, guitar strap, and spare strings. Please note that anything more than the above mentioned would hardly fit into the front pocket, but that is not what I need. I need a most compact "sleeve" for my guitar, and this is exactly what the bag does superbly.
When I am riding my bike, I typically only use one of the shoulder straps (messenger bag style), and the bag still sits comfortably and safely on my back. This points at the high quality materials and design of the entire case.
I am happy that in this 2.0 edition of the bag, Mono fixed the sub-optimal front pocket buckle of the previous version into a much more usable zip-based solution.
Highly recommended.