I read a very detailed review of the pack on this site, and I could not add much to it, other than I really like the pack all and all. It fits me better ( I am 5'2" and 108 lbs) than any pack I have or had, and I wore it very comfortably for an 18 mile and a 23 mile trip, carrying around 19 lbs.
As far as improvements, I agree that the back pad is best removed and replaced and that if you remove the lid the straps just stay and hang on the pack, which is a bit of a nuisance.
I did not use my usual Platy with hose, but I could easily reach in side pocket to grab my water and almost as easily ( two hands for this) put it back, while continuing to walk.
I found the pack plenty big to hold enough gear/ food for several days. The hip belt and straps were comfortable as were the shoulder straps.
The color, Red, departs a bit from my usual earth tones, but I can live with that.
A great little pack for me. Thanks.