If you are a well-qualified top student and want to attend a prestigious school, then find the first one.
If you just want to go to a similar school, but you are too lazy to do it yourself, then find a company with a more reliable third-class school, which is low in cost and easy to do.
If you just want to go to a similar school and you are short of money, find a zero agency. Don't expect too much service, but they will still do procedural things.
The most embarrassing thing is the second one. You will find that you bought a gold ring for a carat diamond ring.