Merach R21 60KG resistance rower

Was looking for a rower , mainly for the Teenage kids to use for their Cystic Fibrosis , but also wanted one with a good resistance I could use .
Came across this and seems a good price for £339 , its on Merach site for £399 and that says its an offer price . There is cheaper ones available but not with that resistance level .
It has for automatic resistance control so apps can change it and it can connect to apps , that was the big thing I wanted so I could engage the kids to be competitive against each other .
For anyone wanting to see reviews its also known as the Q3 and the NovaRow R7 in different regions .
I am sure people will say water or air ones are better , but magnetic is silent which is what I needed .