I like it, for tires 32mm or larger. I use it on my commuter - saves a lot of potential road side hassle.

Set up can be a pain, depending on the tire/rim (sometimes it is easy).
Requires regular usage of the bike (or at least rotating the tires) and topping off sealant every 6 months or so.
you may never get a flat, but if you do it may be difficult/impossible to fix on the side of the road.

Since you already have matched tubless wheels/tires - that makes the difficulty aspect a mute point.
Have your LBS convert them (probably just need sealant and a valve stem) to ensure tires get seated. After that - just need to top off the sealant every once and a while. That is easy (requires valve stem tool) once the tires are seated.