Bought the GLL 2-80 P about 6 mths ago , more of a treat really after 22 yrs of tiling
Did my research and for the money it offered the best spec imho. 360º line with no rotation , +/- 0.2mm/M ( better than Stabila for the same money , which only does about a 160º arc I think and only +/- 0.3mm/m ) . Can't fault it tbh , wish I'd bought one a while ago . The wall mount - BM1 - I bought as part of the package even mounts onto a tripod I have from a cheapo laser I tried a few years ago ( 40 quider , rubbish , used it once and never used it again ) .
In total it was about £350 I think which included , Laser , wall mount and reciever ( up to 80m outside )
This is the package I bought.
Cheers
Diggy