I was in the same position as you, had just got the 100 and very little money left, so the guy at my local tyre place suggested them.
They were very good last time we had some snow, I pulled loads of cars out of the local dog walking place when idiots drove down to the car park, dont have lockers as it's an import, and have never been in deep mud so I can't say what they are like, but for a cheap set I would say not bad, of course they wont last as long as BFG's.