I picked up a kenai last year and overall am very happy with it.
Extremely durable. The fabric seems pretty heavy duty compaired to some other single man flip overs i looked at. The seat is nice but no back rest so i fabricated a removable back rest for it. Windows allow for enough light and the vents work well. It is very roomy with plent of space for flasher, heater and two holes. Cup holders and tray right below your legs are nice as well as the holes in the tray which i use for pliers and scissors.
The one downside is that due to the durability, it is heavier then some other single mans. I weighs 60 lbs which is much heavier then other brands (as low as 30) but it is mroe durable with more room/features. So overall i think is worth the weight.
In the picture that was posted in the review shows the kenai with a zipper door, mine does not have that