I've used most of them. Depends what your going over. I used the laybond one coat membrane last week. Seams ok Used f.ball F75 & F76 mostly over the years with no problems. Mainly use ardex dpm 1c now, which is great and can get a 10ltr on offer. Want to try the level it one now as just got a pallet of their screed.
I've been using mapei 1k turbo for about 2 years now (since open day that Matt ran). Easy to use, no mixing, drys quick. Used others in the past (epoxy's) but much prefer the 1k turbo.
up to 92% one coat and 98% with secondary coat. But 1k turbo any day for me best for price v ease of use plus coverage which is vast about 70 m2
I like the idea you can use it then put the lid on and sling it back in the van ,is it quite economical ?