The Saibaidee Guesthouse is the only accommodation I used in Huay Xai. It is located on the main road, a few minutes away from the old river border crossing.
A twin room was 90.000 Kip, and you get a spacious and clean en-suite room. There is a little balcony towards the main road, and a terrace on the back with a nice view over the Mekong and towards Thailand.
For the money spend it was value for money, and would recommend it when visiting Huay Xai.
Personal Rating: 7/10