This is an excellent choice if you want to stay in Kotor. The view from the apartment is incredible, opposite the waterfront, cruise liners and town, not to mention the beautiful mountains. It really is stunning, especially at night. The apartment is a good size and had everything needed for our stay. It's also very clean and has good air conditioning. There's quite a few steps to get to it so be aware of this.
The swimming pool area was lovely with ample sunbeds and it was never busy. The pool was a good temperature and very clean. I don't think the photos of the pool area did the listing justice.
Kotor and Montenegro are amazing, I certainly recommend getting a car to travel to all of the beautiful places. The road in Kotor is narrow and busy though, so give yourself plenty of time to get to your destination as it is quite congested at the roundabout near the town centre. Dining out is not cheap, but you can find less expensive places outside of the old town if you look.
The only thing I didn't like about the apartment was that we couldn't get the stereo to work (we'd brought our own Blutooth speaker so that was fine). One of the balcony chairs was broken too. Other than that everything was fine. Tamara was very helpful and met us as soon as we arrived, nothing was too much trouble.
Look out for the very cute grasshoppers that frequent the property, absolutely harmless, beautiful and fun to watch :)