I use one. I've had it for several months now.
I paid full price when they first came out earlier this year.
It's okay. I'm sort of neutral about it.
Heavy, yeah, it's a pig when you have tools, laptop and assorted other stuff you need on a daily basis. But in fairness, some of that is on the user as he controls what goes in there.
The base is bulky and will not compress, but if you toss it between the seats of a van or truck, it stays where you put it and doesn't topple over, which is a very good thing.
I do not like the individual pocket-type sleeves. If all I used were 12" long screwdrivers they would be awesome. As I do not, standard length tools like screwdrivers or 4" or 6" adjustables fall to the bottom and then you need to fish them out of the pockets. That's a PITA.
The elastic sleeves inside don't hold squat. Whatever you put there will be falling down into the pockets 10 miles on down the road. I ended up putting one leg of a pliers in each. Otherwise they are all but useless for me.
The front flap "pocket" is great for the latest issue of HF's flyer or the day's paper, but anything of value will fall out and get lost. Why they didn't make it a zipper compartment is just stupid. A place to go with Cat5 cables or other smaller computer stuff would have been nice. What a waste of space.
The laptop portion is okay. If your thing is armor plating designed to withstand an A10 attack or you need Pelican-style padding, you will be disappointed. My needs don't require either of those so for me it's great. Excessive padding and/or armor brings on bulk and weight, this bag needs neither of those.
It is well made. It rides okay on the back. I usually sling it over a shoulder going from truck to shop or truck to jobsite. If my hands are full I will use both straps.
All in all, I would be happier if I paid $60 as opposed to $100.
I looked hard at the Klein bags but opted for this one. Nobody else made something comparable. It isn't price for me as much as the tool doing what I want it to do.
I don't think I would buy this bag again knowing what I know now.
Quality is there, price doesn't matter for me, it's lack of engineering on some things that would cause me to rate it 6 out of 10.
I also have their pouch. I don't know the model number but it now sells for $40. That I like a lot. It's an in between size and I like how it stands on it's own when I set it down. The strap is rough on the neck however and I have a nice mark by the end of the day.
Zoro sells a pouch for $26 by CLC that is a very close copy. I bought one and like it very much. A little bigger but not obnoxious.