The process is very good...and I used mine for 2 years or so. Still have it, but suddenly lost my putting stroke with it and it no longer felt comfortable. It’s now sat in the spares bag and feel much comfier with my Scotty.
It’s strange, but I’d recommend giving the fitting a go, even if you don’t buy a putter
I’ve got one, had it over 4 years and it’s the only club I haven’t changed in that period.
As above the process is very good and firmly of the opinion it’s me not the putter when I have a bad round putting.