I'm also looking at alternative workshops beside TC. It seems that they have increased their price again. Package A which is servicing for 30,000 km costs $180 with synthetic oil. 
i driving my previous car for 4 yrs.. and been doing servicing outside since then. 30k km servicing cost abt $110 on average depends on what engine oil u r using. Include engine oil change. oil filter, air filter, multi points cx, tyre rotation. But of cos, u have to bring ur own engine oil.
And also u dun have the luxury of sitting in aircon room, leg massager TCM provide la. :)
But u can try stamford package if u prefer a comfort rest area with aircon. Seem alright as they are using Xrev engine oil. Good stuff.