We just booked this a few months ago. We actually have been on HAL's Alaska cruise (a few years before we bought
DVC) so we already know it's a great trip. We knew we wanted to go again and when we saw that it was a tradeout through DVC we knew we'd do it at some point.
We're going July 24th this year. The 211 points per person listed will get you the highest category outside cabin before you get to the ones with verandas, mini suites and suites. Having been to Alaska before on HAL, we knew we wanted a veranda. While DVC only gets you to a certain level on points, you can upgrade with cash. For our mini-suite with veranda, we paid the 211 points per person (just DH and me), plus $300 each. We also paid the $75 exchange fee and port taxes. The total was about $1,000 total on top of our 422 points.
Is it "worth" it? For us, the answer is yes. We were going to take this cruise anyway and, in the middle of summer, you're not going to find a lot of deals to Alaska. The cabin we were looking at booking on our own would have cost about the same or a little more (using point "worth" of about $6), so we felt it was worth it. Not just for the money, but the convenience of calling DVC and just having it taken care of.
We were able to request and get a specific cabin and dinner seating. We did call HAL directly to add our Mariner numbers (their club for prior cruisers) and could also have arranged ground transfers through them. However, we're flying into Seattle and driving up rather than flying into Vancouver.
On the cruise itself, I can't stress enough how AMAZING Alaska is! We're not big cruisers (in our early 30s and childfree, not big beach fans) but we absolutely loved HAL's ship and the itinerary. They have fabulous shore excursions and are able to get into Glacier Bay, which not all cruiselines are. I'd say definitely get at least an outside cabin, and a veranda if you can afford it. The scenery is amazing! If you don't have a view from your cabin, you can hang out on deck with (lots of) other passengers. HAL is terrific in that they have included a lot of things that other lines nickle and dime you for - like hot chocolate and cider out on deck while you're glacier watching.
Sorry this is so long, but I'm trying to include everything here. If I've missed something in my excitement, pm me or post again.