Does anyone have or try one of these?

[Speedsterbeast]

Was looking at track saws, but thought this might be nearly as good for cutting dibond sheets.
Although the reviews say it's a pain to attach, having a dedicated saw just for this might be an economical way to go.

Any experience with this out there?

http://www.signsplusbanners.com/ite...+Tools&c=Panel+Saws&s=Portable+Cutting+Guides