HSBC business cash deposits at the Post Office

I've just made our first HSBC business cash deposit at the Post Office and it was so easy. All that's needed is your HSBC debit card, no forms to complete – yippee!
 
My next challenge will be paying in business cheques, but the wonderful Diane says all I need to do is complete a paying-in slip from our HSBC paying-in book and write our company bank account number and sort code on the back of the cheque and pop it in a cheque deposite envelope, which are available in the Post Office.
 
Maybe I won't change my bank account after all – or should I wait till we get the promised ATM in the Market Place?