How safe is etransfer - selling big items?

I have used etransfers for years for big items and small items. I never use cash or cheque. Cheque for instance is the most insecure method you can use. It shows your name, address, bank account number, branch and signature. All easy to copy. Set up your etransfers for direct deposit and it goes immediately into your bank account and is encrypted very well. The Canadian experience is much different than the US experience with major differences in the banking system. If you have the purchaser make the final payment in front of you using cell phone or computer it will be in your account the second he presses send and then you can release the engine. No need for going to police station or anything like that.