I came here for a wedding with a group of 10 (we're all in our mid 20s) and the house was perfect! Yes, you need to bring your own bed sheets and towels but Sondra told us that in advance so there were no issues there.
House is spacious and was very clean upon arrival. It's walking distance to downtown and the beach and the key pad access (vs. actual keys) made coming and going in a big group super easy.
Sondra was available when we needed her (there was a late night call when we first arrived since we couldn't figure out the Wifi and she answered and helped) but also gave us our space. Everything leading up to our stay was smooth and all the details she gave us about the house were accurate.
I would definitely stay here again and highly recommend it for groups.