I've not had experience with that brand of test, but I do know that generic tests (as long as they aren't old) are just as accurate as their name brand counterparts. Plus, even when generic tests do get it wrong, it's usually in the other direction, telling you that you aren't pregnant when you are.
And just to put your mind a little more at ease, I have a friend with 4 kids and she always uses Dollar Store pregnancy tests. They were never wrong!
It looks like you're pregnant. Congrats!