I have the Giga Be laptop case. It’s nice quality and fits my 15" laptop. The outer pocket has lots of organization and the main compartment is roomy enough for my charger cord, laptop, and a few files. The shoulder strap is really thoughtfully designed - it swivels near the connection with the bag so it never gets hopelessly twisted, and it adjusts at both ends. The carry handle is nicely padded too.
I don’t work for the company or anything, but was pleasantly surprised by the quality and details on my pink flowered case. The only feature I miss is a slot on the outside to let it slide over a rolling suitcase, but the strap is long enough to wear the bag cross-body.