Pro's:
1) Convenient location to North Shore activities and hikes. You can walk to Queen's Bath, and probably to St Regis too (they have bad parking policies)
2) safe, quiet residential neighborhood with easy parking and good for evening strolls
3) Mariana was very accommodating w/ check-in time, and her husband was helpful in getting our shoes cleaned after a muddy hike
4) futon bed was more comfortable than I anticipated with decent support, the pillows on the other hand....(not so great)
5) huge bathroom, spacious shower, and great water pressure
6) very clean space
7) room has coffee pot, mini fridge, microwave for you to make lunches

Con's:
1) The studio shares walls w/ Mariana's residence, and she has 2 young active boys, so you can hear every step (that sounded like stomping) and conversation (that sounded like yelling). Granted, they were on vacation from school, so if you stay w/ them while the boys are in school, it may be much quieter. The family did keep quiet after 10 pm, but I felt like there wasn't much privacy.
2) The studio is much smaller than it appears in the photos. It's fine for 2 people who want a bed to crash on at night, but it wasn't very comfortable for any relaxation to be done while in the studio.
3) Location: If you like to golf and want to feel like you never left the Mainland, then this is a good area for you. The neighborhood is very much a cookie cutter McMansion suburbia. It's surrounded by Timeshares so not much charm there. Most locals don't live in Princeville (transplants, tourists, Timeshare folks do), which we didn't know about, so we felt removed from the real Kauai experience.

In conclusion, it was a pleasant short stay, and the studio served its purpose. It was affordable and available when everything was fully booked, and we got to stay on the North Shore a few nights. Thank you!