Love love the idea of a lunch bag with a strap! Especially for little ones starting school as they have enough to juggle as it is.
I was really pleased with this bag - it held my daughter's lunch cool and steady, with enough room for her lunch bottle as well (this is held in place by an inner velco strap) - so yes it's a good all-rounder. It's durable too although being light pink it did pick up the dirt, especially on school trips.
Towards the end of term the bag became stained. It's not Navigate's fault, somehow my daughter marked it and I have tried a handful of stain removers, even homemade remedies to get the marks out.
As I've said, it does everything you want from a lunch bag and the handle is the best idea. Just wish I wasn't shopping for another one now. Because of this experience, I think the bags with the full-patterned covers on front (jellybeans and allsorts) would be better.