Market.offer leases

Tenancy Types and Management

Has anyone used Market.offer to lease their property and if so what was your experience?
It seems simple as described to hand over your property for 3 to 5 years to be effectively sublet or rent to rent and all of the maintenance costs are then paid by the other party as well. 
I am nervous of getting into a situation where I cant get my property back and how this type of lease would work etc, especially with new rent reforms coming in and if there could be illegal activity in my properties that I would no longer find out about personally if I no longer took charge of them etc.,

Im presently looking at options

Any thoughts?