My friend is building a house right now. He has mixed feelings on it. He's doing the General Contractor role and hiring all the subcontractors so that saves him some money. He's found that materials are more expensive than he thought. He's also able to do less of it than he thought he'd be able to do.
He's owned the acreage for a while so he's been preparing for this for a long time. Most people think they can get whatever they want if they build their own house but really you just get a few more option that you can afford.
Overall I think he will save some money and get a layout that he knows he likes. He said he wouldn't do it again if given the chance though.
we would definitely not be acting as our own GC. Yeah, we're not thinking it would be absolutely everything we'd ever want because money, but it seems to be a good option to get some things we really want.