If you fill many or most or all of the pockets (I do!) you will probably need a size larger than usual--especially if you put a tablet in the tablet pocket. I use the XL as a wearable carry-on. I use a size L one when I need just a few more pockets than a regular jacket has (and no tablet). (L is my normal size).

As many reviewers have noted, the zippers are cheap and flimsy, you need to take care when zipping and unzipping. I have a much older model that has higher quality zippers.

I do like the removable sleeves.

Despite having owned ScotteVest jackets ever since they first came out, I have never used the "personal area network" with my smartphone or tablet and earphones.