Terry, I've had the Workcenter for about a year now. I haven't gotten as much use out of it as expected for one reason, because of all the exterior (windows, dormers, decks, fence, greenhouse roof and so on) projects I did from last spring through fall. It would be pretty hard to use the Workcenter up on a ladder installing windows. [tongue] This winter I did get a chance to use it on a big interior job. It was invaluable for a number of projects there. For the custom closet shelving projects it was great at keeping things organized and off the floor just as I hoped it would be. Still, you need to stay organized or you can overwhelm the Workcenter too.
I don't mind taking two vacs to the job since I have a Mini and 26. I suppose there could be some inconvenience if you only had one vac on the job.
As far as transporting it to the job it is slightly bulky and there are few plastic parts that require a little care in loading. Honestly, I don't know how it would fair if transported daily since I haven't done that. I pack it carefully just to make sure it gets to the job in tip top shape, but than again, I'm a careful kinda of guy. Maybe it can take the abuse of transporting. You'd have to ask someone else for a better answer.
I see the workcenter like the MFT table, there is some hassle involved in getting it to the job, but once there it's well worth the trouble.