I suppose that price isn't too bad for what you get, but in my opinion, I've never been a big fan of the "hitch hook" deals-I've seen several guys try and use them, and when off camber, or at strange pulls, the strap can come undone very easily. I think you're much better off with a large shackle-they don't come loose!
A nice strap is a MUST though, and a tree saver as well is a good idea-though occassionally you can get by using the strap as a tree saver-just nice to have a collection of shorter, and longer ones.
Anyway, just my opinion, take it for what it's worth-I'm sure others will have many different views on the subject.
Best of Luck to ya,
Mike