We didn't stay in the rooms, but from the outside they're probably not worth more than 10usd a night. Staff is ridiculously unwelcoming too so be prepared should you want to risk it.
We just rented bicycles from them, 15,000 Kip for 24 hours, worked.
We wanted to work with the same shop so next day we went in and rented 2 motorbikes, they were terrible and it felt like they were giving you a bike so that it could just die on your hands with you to blame (and pay) for it. Also he rented them to us around 9pm with the tank completely empty and we had to stress out to find an open petrol station at that hour, as all those in town were already closed. Guy didn't tell us anything, so good start. The day after we survived on them to Kuang Si falls and later returned the bikes with a slight delay (45min) as we got lost coming back.
Despite our effort to create a relationship of costumer loyalty with this establishment and also leaving a previously empty tank half-full they refused to return our passport if we didn't give them a ridiculous 20,000 Kip. In the end of all of this! Just ridiculous! We paid after a 1 minute discussion as there we more fun things to do in LP than arguing over 2 Euros, but it's a question of principle. So here's the advice: don't have any dealings with his shady place.