You really need to try them out in person. I'm 6'1, 160lbs and I can get in and out fine, takes a couple of tries to figure it out. Is it more work than a regular seat? Yes.
If you had to run errands in it all day getting in and out will it become a pain in the ass? Most likely yes.
Winter driving is also going to be fun, your pants are going to rub the door sill every time you get out so get used to removing dirt and salt off of them