What are your experiences of Drivalia subscription cars?

Has anyone here had a car on subscription from Drivalia? I can see the bad rental reviews but I'm looking for a 3 month susbcription so I'm keen to understand what they're like in that domain.

I'm definitely looking for a short term subscription / lease as I have some other things going on and don't want to add the hassle of buying and selling a car in a short period of time.