According to TGP info at least, they crippled the functionality of this thing presumably in order not to eat into ES-8 and ES-5 sales.
There's no delay spillover/trails, and the loop order cannot be changed. Also, the placement of ALL the integrated effects can only be placed in front of, or behind the analog pedals loop.
Nevertheless, if you have a handful of essential analog effects and would like to add more (sans power supply/patch cable hassles), and prefer not to do any tap-dancing, this sounds like a viable option.