Just got back from Riu Naiboa and here is my honest rating...

Bugs... No bed bugs, However there were tons of mosquitoes and sand fleas. My group came back covered in bites all over the legs. This is not a Riu Naiboa issue as it was out of their control. I don't want to scare anyone but my second last day, there was a single cockroach in my shower. My husband flushed it whole and alive down the toilet. I didn't see any before or after that however I do recommend checking your shower drains. This isn't just the Naiboa either as the Bambu had insects coming out of their washroom sinks according to someone from my group.

Rooms- people weren't lying, the beds are hard and the mattress are older. Also, the mini bar was rarely ever restocked with beer or water. The Air Conditioners are located by the front door therefore making the room still warm and humid when the air conditioning actually worked that is. The linens were NOT changed daily so you could feel sand or anything from your skin the night before.
Pool towels were also stained however they would exchange them out.

Weddings- I would not recommend booking with a Riu in Dominican. My experience was horrible. They show no care or compassion in regards to your day and it's pretty much a "give me your money" and you're on your own situation. I had to do my own rehearsal for the ceremony. We as in my group made it work. Do NOT spend extra money on anything because the extra is the bare minimum.

Excursions- we did a party boat that included drinks and lunch. The drive there took about 1 hr and the drive home took about 20 minutes. It made zero sense to me until someone mentioned that the 1 hr drive there took away from the time on the actual excursion. Lunch consisted of Pineapples and nacho chips.

Food and bars- food was good, wish there was more of a selection. There is no swim up bar and the only bar open during the day is above the pool and a little hike. At 6 pm the second bar opens however, I think both should always be open.
The beach bar also closes earlier.

Waterpark- kids loved. They serve drinks like pop and coffee no booze, obviously

Beach- huge amounts of seaweed that just piled up. Also sand fleas were the worst... this is what makes me not want to ever go back to DR.

Staff- they were hit and miss. Some were rude, some were amazing. Again the language barrier is there but they always find someone who speaks English to translate.

Entertainment - I actually really enjoyed the night shows.

Overall, I wouldn't go back to this resort. It just wasn't my cup of tea however It might be yours!

2/5 stars from me!