It's a good value, good quality and versatile plinth.
One thing though, if your friend doesn't need a plinth with an adjustable back (i.e. back that raises) and she's considering mobile therapy, she might consider a lighter modle. At 18 kg I find Combi-Lite cumbersome and a bit too heavy to lift comfortably. I have seen very light models offered on ebay at reasonable prices but I have no personal experience of them.