It doesn't seem like anything special. It's a HF year followed by a IC year. Anyone can do that themselves now, I know a few fellows/attendings who've done this. Though I guess the ability to apply and interview only once is a nice perk. Tufts HF is solid but unsure of their IC program, one may decide they're better off doing IC elsewhere. You also have to think about your ultimate goals, job prospects and if it's worth that extra year