We stayed in the two left-most chalets (we were a group of nine, friends and family).
The chalets are well worn, but perfectly acceptable. We had a few minor issues (gas stove wasn't fully functional, the fan in the one bedroom appeared to have no controller), but everything was clean, bedding was great, kitchen fully equipped.
The game viewing was fantastic - the dry river bed was like a highway for the game with groups of elephant, antelope, buffalo continually passing.
But the staff were wonderful - we had an accident in the chalet when my sister dropped a glass on her foot and made a deep cut. The duty ranger helped us with a medical kit and, when we couldn't stop the bleeding, arranged for a vehicle to escort us through the night to the closest doctor in Komatipoort. This turned into an impromptu night game drive, albeit a rather rapid one.
My sister sewn up, we returned to Biyamiti, getting to bed at 2am, only to get up again at 5am to go for a game walk.
The walk was excellent - not very strenuous, but a moving lecture as we strolled through the bush, with two highly knowledgable rangers, Bridgeman and Oupa. Highly, highly recommended.
And then that evening we did a night game drive (a lot slower this time) with Simon, the ranger who'd escorted us to Komatipoort. Again, we were highly entertained, both by his sense of humour, and his extraordinary knowledge of game, birds, trees and plants and even rocks! The natural history knowledge and experience of these guys is truly impressive.
An additional bonus that comes with staying at Biyamiti is that there's quite long stretch of road that is private to camp residents only.
Beware of bull elephants in musth however - my sister and brother in law were held up for half an hour by a frisky bull who wouldn't let them pass. He charged them - no mock charge this, but a full on head down, ears back, silent onslaught! They had to wait until he wandered off the road - and were charged again as they passed by... We were very careful to keep our distance from any elephant that looked in any way nervous or frisky.
We loved Biyamiti, and will be back. We stayed two nights and would recommend at least that - staying only one night is not enough!!
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.