People actually have a pretty good track record of building companies from loans. If you don't know how to make money from your idea then it sounds scary but if you actually have a way to get revenue then it's not. I would guess not having faith in your idea would keep someone away from taking a loan, but if that's the case why are you looking for any kind of funding?
most business get started with loans. While there seems to be a high aversion to putting your own money in or borrowing money to get off the ground in tech and web firms, it pretty common in the small biz space as a whole.
One advantage is that it is fast, and you remain in control.