Just got a pair of these (mtb 2 bolt version) in blinding fluoro yellow (you can see me a mile off lol)
Id been on the look out for reasonable value winter boots for a while as my Shimano MT7s are great in the summer but freezing in the winter as theyre so well ventilated and take on water like the Titanic. Over shoes help (I have a pair of gripgrab race thermo x), but dont fully solve the problem and get easily worn and damaged.
I was lookin at fizik artica x5s and similar but couldnt quite stomach spunking over 150 quid for a pair of bike shoes. This bought me to the planet-x das boot.
In terms of fit and feel they are very stiff, like a football boot with a reinforced toecap. The toe box doesnt give much wiggle room and they size like a Shimano meaning you should probably go up a size from your normal shoe (eg I got 46 when im more 44.5-45). I initially got my size and had to return it (which they processed very quickly I might add), but the upped size replacement is far more comfortable. I would probably say people with very wide feet might struggle as you might end up with a shoe thats too long when you finally reach a comfortable width.
In terms of performance, I went out for a muddy blast in 4-7 degree weather yesterday and my feet were cosy and toasty the whole way round in only thin summer socks (my face was freezing), whereas my MT7s would have been very cold without a couple of layers of winter weight socks and overshoes. Admittedly only 21 miles and circa 2 hours of testing, but I see no reason for them performing much worse over a longer period.
I havent tested the waterproof and submersion ability yet, but given the toe box and cleat seems pretty well sealed, I am hopeful (I used to dread having to dab in the middle of a big puddle with the MT7s).
So all in all seem good value after very limited testing, but ask me again in a years time lol.