Dee Dee and Lono's place is great! Everything was really clean and as pictured; I stayed for 5 weeks and had no issues in the slightest. Though if I had, I have no doubt it would have been fixed quickly - Dee Dee was always incredibly quick to respond and she was incredibly pleasant. Lono is great too, and definitely makes for some excellent conversation! The neighborhood is also really nice; it's quiet and calm, but only a 5 minute walk to the bus that heads downtown.
If you're looking for a place to stay in St. Johns, I highly recommend it!