Our stay got off to a great start, when Rosie let us know a day or two before our trip that we could check in as soon as we arrived on the island at ~11a (before the 3p check in time). I'm sure that was contingent on the condo having been unoccupied the day before, but I know not every host is so flexible, and we appreciated being able to drop our things off and head off to lunch unencumbered.
The condo is right at the edge of the core few blocks of Avalon. We found this perfect—restaurants, the grocery store, and the main Avalon attractions were all within easy 5-10 minute walk, but it was a bit quieter and more secluded than many other vacation rentals we saw. We knew before the trip that golf carts were a primary way for getting around, but didn't quite expect how many of them there would be on the streets at all times and how noisy they'd be (considerably louder than most cars). At the condo, we didn't hear any of that. Despite being in a complex with quite a few other condos, sounds from others were generally pretty limited.
The patio space was wonderful. We used the grill on the patio to make dinner two nights, which we of course ate from the table on the patio, and enjoyed time spent reading out there every evening after getting back from the day's activities. It has a great view of Avalon and the harbor, as well as the surrounding hills. Probably 80% of our waking time at the condo was spent on the patio. The provided photos in the listing are nice, but don't feel like they really do it justice.
The rest of the condo was pretty well stocked too. The kitchen had a good range of plates, glasses, and cookware (the pantry items that tend to accumulate in an unit that's been a vacation rental awhile were a bit sparse, but I'm guessing this was recently converted to a vacation rental—at least we added balsamic vinegar, olive oil, and brown sugar to the supply—but that's not the responsibility of the host). The bed was comfortable, and with a nice number and range of pillows (I've had a few stays at otherwise nice places that could have been a lot better if the queen bed had had more than one floppy pillow for each person, but absolutely no complaints here). We also appreciated the beach towels that were available in the closet, which we put to good use when we went kayaking and snorkeling (and which we'd highly recommend).
I will note that if you are on taller side, the bathroom height might make you feel a bit cramped. The bathroom ceiling is lower than the ceilings in the condo, and probably of greatest relevance, the shower head is down another ~foot from the ceiling height. I'm of average height, so it wasn't that big a deal, but I was definitely bending a bit more than usual to get my hair washed.
From what we could see, everything on Avalon is on the pricey side (as is to generally be expected on an island). In that context (and in comparison to some other places we considered staying, some of which we walked past during our stay), the condo felt like a really great value. I'd bet we could have found places to stay that cost $150/night more than this condo that we wouldn't have enjoyed nearly as much.