As promised, I am now reporting back since my H-16 arrived.
Here are my findings:
The bag is very nicely made andjust about what I had expected in almost all respects. The outer side seems tough and protective, the inner linings are soft and also protective. The styling is very nice as well, as are the locations and sizes of pockets, zippers, compartments, etc.
The bag, with careful planning, will actually hold all 4 of my lenses as well as a 580EX II flash, Sto-Fen diffuser, XSi body, extra batteries, and SDHC cards. This is really quite amazing since the lens are quite large, including an 18-200 zoom, 12-24 zoom, 18-55 zoom, and a 50 f/1.4 prime. It is an extremely tight fit, and not one I will likely use for any real travel, but I possibly may consider it based on how comfortable the shoulder strap really is with all of this weight after a long day of walking around.
There is one very annoying and pretty glaring defect in the design in my opinion which some other folks have mentioned:
The front large flap of this bag is secured with a large plastic clasp which is sewn to the inner side of the flap and mates with another plastic clasp on the bag. The clasp needs to be open and shut in order to keep the flap secured or opened.
The problem / defect comes from the attachment being far too short to allow for easy use. Getting your fingers / hand around the clasp to operate it is extremely challenging. The net result is that openeing and closing the case for "rapid fire" camera use is essentially impossible.
There are 2 small zippers, one on each side of the clasp, and these can also be used to secure the flap and keep the case tightly sealed against dust, dirt, etc. But they are not intended to be the only or the primary closure method.
A little work with a sewing machine and some matching fabric could solve the problem, but it is a true shame that this specific detail is poorly executed.
Hope this is useful to other folhs looking at the Kata H-16. If I had it to do over again, I would still buy this bag even with the limitation noted.
Larry