Don't have one yet, but working on it. If you are just looking for a way to play PCE hueys, the LT is probably the last system you should consider.
While very cool, there are way, way cheaper ways to be playing PCE.
EDIT: I guess I can expand on that. It's portable. It has a higher resolution screen than the GT/Express. It has a controller port and the ability to hook it up to CD Rom attachments (including the Super CD Rom, though that takes either an impossible to find accessory or a hack saw as I understand it). It's one of the coolest pieces of hardware ever made in my opinion. Is it worth $1400? Probably not, but that's really up to the buyer.