If I can add my 2 cents, I'm living in Phase 5 (block 30) and I can say I'm more than satisfied, with a beautiful seaview and a brand new apartment. This is really enjoyable. It's close to the "center" (Park n Shop, terminals, restaurants), close to the village. We have a beautiful outdoor swimming pool which should be very nice in a few months.
Indeed I visited several units in other phases, and nothing matched the quality of Phase 5. There may be more storage in other phases, but if you compare with HK Island or Kowloon, it's so better ...
About the transportation, it's very convenient. I don't really see the interest of having taxis allowed to come to PI.