No offence, but I stay in USJ myself. I dread passing thru USJ1/Summit USJ.

Here are somethings that comes into consideration:-
1) Massive Jam during peak hours (From NKVE & Persekutuan Roundabout Stretch up to Pyramid at times)
2) Flooding at Traffic Light after downpour (Summit USJ)
3) 2 Entries in and 2 Exits
4) ALL USJ1 PROP. ARE LEASEHOLD

Sorry but this is just my opinion.