I'm in South Florida. It will be a few months before I purchase...still saving up so I can buy both at the same time. I definitely will inquire about better tires. The only recommendation I've come across are for the Schwalbe Marathon E-Plus in 650b x 50c (2"), but I'll speak with my LBS and see what they recommend. I have limited experience with DIY. I grew up riding BMX and did build my first 10 speed in my 20's. I heard getting the stock tires off these rims is a pain, so I'll probably let the shop order my tires and install. Didn't even know Kevlar is used in tires nowadays. Thanks for the heads up. I know when I did ride I heavily preferred a snakeskin tread. Good traction, even in loose sand and good wear resistance.
The wife said she liked the low-entry, but honestly I'd rather get her the Treadwell 2 Remixte. Since I'm doing the buying I very well might go that route. I agree the Adventure looks like a weaker frame for sure.
The wife didn't really need the bar/stem adjustment as much as I did. I may end up with a stem extender if my hands go numb from low bars which used to happen on my Giant Revel 1. I tried swapping out the handlebars with Deity high rise bars but it didn't help much. I was unaware of stem risers at the time and sold the bikes.
As far as the clutch, I've seen a few videos that explain it as a chain tensioner that keeps the lower portion of the chain from slapping the frame. Seems the newer microSHIFT Advent, 9-speed's actually DO have this feature so probably a non-issue. I know I'll end up off road exploring my local trails.