You will get a nice blue badge on your profile!
Other than that you're not gonna notice much difference. There is the feedback removal perk though, and you'll have access to the TR part of the forum, where nothing ever happens.
That's good to hear! Here are some perks of being a Top Rated freelancer, which you may also read in this help article.
There are two ways to to gain access to Talent Cloud jobs:
You may read more about it here.