Really bad experience at Tim Hortons

I am not much to want to waste my time in submitting a complaint about a restaurant that I have visited.  But the experience was so bad at the Tim Hortons I went to today that I had to send the following complaint about customer service to their website.

“Having Never been to a Tim Hortons before I thought let's try this place they seem to have a lot of them.  The experience was horrible to say the least. I felt like I was haggling with a local used car sales man just to place my order.  Then after we get our order started I am told that what I ordered isn't available.  To top it off what I changed my order to to suffice the "supervisor's" inventory, they still didn't make it correctly.  I will most likely never visit a Tim Hortons again, and will make sure I tell people in my sphere of influence about this horrible place.  I am not sure what your specialty is but customer service is not even on the list.”

What experiences have you had with Tim Hortons? Are they similar or did I just have a really bad experience?