I find the Uniden BCD325P2 sounds better with Phase 2, but Whistler scanners like the WS1080 and newer receive better. Phase 1 sounds great on the WS1080 based scanners - even better than the PRO-106. I recommend the TRX-1 overall for Phase 2 systems if you're looking for a portable. Simulcast systems will be an issue regardless of which scanner you get.
I was at my in-laws on Christmas day with my 436 (with the foil mod), and I have to say that the system sounded like crap about 50% of the time. I was in the Vanderveer Rd area and had full-scale signal on both the 500 & 700 sites.
When I still lived in the county in the southern end of Branchburg, they sounded great. Maybe it's just my sister-in-law's house!