I really liked the GW as it was very spacious and I tend to travel with several family members. I have never stayed in the other locations in Honolulu so I can't compare it. The penthouse units have great views and the penthouse lounge is wonderful.
Compared to every other timeshare we've stayed at or own, with the exception of Polo Towers in Vegas, the GW units are the smallest of the one bedroom units we've ever stayed in. Spacious compared to a hotel room yes. Spacious for a timeshare no.
Perhaps the penthouse units are larger than the standard, plus and premier units. If so that would give you a different perspective than what we had during our stay.
Don't get me wrong, I'm not saying I did not like our unit nor enjoy our stay. It was a very nice unit with a great view. What I am saying is, compared to the Lagoon Tower and probably the Kalia Tower (we haven't stayed in the Kalia Tower ourselves), the extra points required to stay at the GW really aren't worth it IMHO. Nice unit but, it's smaller, the views are as good as the Lagoon Tower (again IMHO) and it's less convenient to just about everything compared to Lagoon and Kalia. I did not really enjoy having to take the elevator down 24 floors, walk through the lobby, out the front door, half a block down the street, across the front of HHV, through the lobby of the Kalia building and up the elevator to the 4th floor there just to get to the fitness center, which I also considered small for a resort with as many units available as HHV. Sure it's a nice walk but, that's quite the distance to traverse every day just for a 30 to 60 minute workout.
Toss in the post above about a 7,000 point package costing nearly $50,000 and it makes you wonder what HGVC is thinking. The unit we were in required >12,000 points to reserve. If I were to purchase that one bedroom premier unit direct, that would mean I'd be paying HGVC nearly $85,000! DANG! That does make me a little light headed just thinking about it. Rather then plunk down that sort of cash, if I wanted to be in HHV as a home resort, I'd definately be looking to the resale market. Heck, reserving in the club reservation window using my 7,000 points deeded in Las Vegas actually looks EXTREMEMLY attractive now, even though I don't get first choice of buildings or location with home resort advantage that GW owners enjoy. For that price I honestly wonder why anyone would purchase just to reserve anything BUT the GW. I know I darn sure wouldn't spend that kind of cash just to trade out for Las Vegas or Orlando.