I use this light, simple Gigbag to transport my Bass or E-Guitar (too "big" for Electric guitar, don't care) to many jams etc, usually by bike. With pedals and other things I am carrying, I already have enough weight on my back, so I appreciate that it is so light. That does means less protection, it is not padded, just a simple cover with zippers, handle and backpack straps. Hence it is not suitable for touring or expensive/coddled instruments.
The zippers and backpack straps have held up nicely! during these 4.5 years. The pocket can really hold a lot more than it appears at first glance, 2 pedals, 3 cables and a bottle of Club Mate and then some.
The only "downside" is that, since they are such a good deal, everyone has them. More than once I almost grabbed the wrong bag to take home at a Jam sesh because several people had same gigbag hehe. Easily solved, I just put some white Gaffer tape on visible spots.