In a prime position, just 2 minutes walk from the boat dock - up the street from the boat dock and then turn right. It is adjacent to Pan's Residence which is under the same management - from what I heard and could see it would seem that Pan's Bungalows are better.
Of the 10 bungalows, only 3 of them (numbers 8.9 and 10) have direct views over the Mekong and number 8, which I was lucky enough to have, had the least vegetation between it and the river.
At the equivalent of $32 (US) a night it was a bit expensive but it gave me everything that I wanted. The bungalows are sturdily built and well furnished. No noise from outside or next door during the night. There was a mini-fridge and the bathroom was of a good size with a good shower. There was a limited selection of toiletries and there were tea and coffee making facilities.. There was air-con and a fan and a mosquito net which wasn't needed. There was no TV but I wasn't expecting one. The private veranda was a good size and had a table and fairly comfortable seating. The WiFi connectivity was a bit erratic but usually good. The staff and the owner were friendly and efficient and you can do all your travel booking with them. There were a number of choices for breakfast and I had the tasty omelette every morning along with a baguette.and slightly too small portions of butter and jam.
Nearby there are mini-marts souvenir shops, bicycles for rent and a number of eateries, including the much-mentioned Lao Long Restaurant with its good food and dreadful service.
Were I to return to Don Khon(e) I would certainly consider staying again at Pan's Bungalows - and I don't say that about too many places!!

We booked a room in Pan's Residence, because it had the best reviews, but when we arrived we got a room in Pan's Bungalows without any explanation.
To be honest, the view on the mekong river was much better in the bungalows than in the residence, so we didn't complain.
The bungalows are very basic, the mosquito net had many holes (luckily we brought our own), the water pressure in the bathroom was nearly non-existent and there are a lot of mosquitos in the room.
Normally we wouldn't consider this as a big problem, but for 25$ per night it was way overpriced.
Breakfast is served in a restaurant at the main road, not at the riverfront - you can choose one dish and one drink, included is also orange juice and a small fruit salad.

Conclusion: Beautiful riverview, but bungalow way overpriced