Product review (5 stars): Easy to slip the washing machine on and slide it ...
Works as it is supposed to.  My washing machine leaks every now and then and have tried everything to figure it out.  This holds a lot of water but not a full load of water if you don't have it connected to a drain.  My only challenge is I have to use a shop vac to draw out the water because I can't connect this to a drain where it is located.  Easy to slip the washing machine on and slide it back in place.  I have less than an inch all around so it's not obtrusive.  Solved my problem.