I personally think that it is the same. And if I had a choice, I'd rather wait a little bit longer for the test date and save lots of money. I also don't like the idea of getting different instructors as they don't know your standard and weaknesses, plus you could be unlucky and get a hot tempered one. Just speaking from experience :)

personally school is better as we are given priority for booking an early test date. The instructors are more committed. Good luck!

got some say that school better chance of passing. but take from school is more expensive.

so, if u want to have higher chance of passing, and $$$ is not a constraint, go school better