I’ve got the newest two way Boas on my Lake MX238’s. Comfiest shoes I’ve ever owned, and I’ve heard that the MX241’s are even comfier. You can snug them right down and back them off click by click as your feet swell during longer rides. Never had a problem with any sort of constricting feeling.
I’ve also got a pair of Northwave Spider 2 Plus trail shoes that have Northwave’s Boa clone, which IMHO isn’t a patch on real Boa laces. The main difference is that the Northwave system uses a less durable cotton / polyester lace which is prone to fraying and snapping. If it breaks then you have to buy a £13 replacement. Also, part of the ratchet system is exposed on the Northwave dials, meaning that a rock strike or bad impact can write off the whole shoe. This part is not replaceable.
Boa will send you a free repair kit if their lace or dial get damaged. As far as I am aware, this guarantee covers manufacturing faults as well as crash damage. The Boa lace is much more durable, being made of a nylon fishing line type material.