I stayed at Tony's for a friend's wedding recently; it was the perfect location for access to the wedding, as well as other parts of the island (1.5 h to Waimea Canyon, 40 minutes to Hanalei). Kapa'a also has a high density of good food and coffee places (Imua Coffee and Sleeping Giant Grill are in the shops in the same parking lot as the resort, and can't speak highly enough about either of these places).
The condo itself was clean, comfortable, and pretty quiet; I couldn't really hear the neighbors, just the waves of the ocean (got up every morning and watched the sun rise from the balcony). I didn't have a chance to use them but there were beach chairs, coolers (freezer pack in the fridge), noodles for the beach and pool. Speaking of the pool, while on the smaller side, its proximity to the beach along with the excellent tiki bar meant I spent a decent amount of time there.
Tony was very quick to respond, but really I had no issues (and I almost always have a problem with keys or locks). There was always some parking available, even at night. I really enjoyed my stay and wish I could have been there longer!