What do you mean? I haven't read the books, but Tormund seems to me like a great character in the show.
Like most characters, he's way more interesting in the books. The show cuts out 90 percent of the history, dialogue, stories, jokes, etc that add depth and personality to everyone, especially the less important characters who don't get much to do in the show, but eventually get like hundreds of pages in the books.
Tormund has like 100 different jokes about how big his dick is that he forces into every conversation. He's really funny brave and down to earth, and reading the books you understand why Jon Snow and the Wildlings can't help but love and respect the guy. He seems to be as big of a deal to Jon Snow overcoming prejudice against the Wildlings as his dead girlfriend was, but I don't think the show gets this point across very well.