It took me about 1 1/2 hrs to do the process. I took all the water out, put all the fishes in a big rubermaid container with air stones. Jardini jumped out of the container twice , When you get the sand wash before you put it in.
Looks great! Been wanting to switch over to PFS too just don't look forward to taking out all the old gravel....but thanks for the beautiful motivation to get it done and it's cheap so win win!