I have some tenant's that pay weekly in cash, we've tried to move them to bank transfer but no go. Rent is left in the rent book in the property to be collected by my agent. It's a legal obligation to have a rent book as far as I know. The tenant's like it so far as I can tell and so does the agent as it's a clear record of what is paid. From a landlord's perspective it's good to see how the property is. If tenant's have an issue than they can leave a note etc. Most of my tenant's are foreign nationals and they need help sometimes with things that are not related to the tenancy. You'd be amazed with the grief they get from certain parts of the Irish state.