There are a number of disadvantages to being a solo-founder; however, as long as you are cognizant about it, you can take steps to compensate.

The real question you want to ask yourself is why you're going the solo-route. As a solo founder myself, I'm fine with the tradeoffs because it affords me certain other liberties. Do some soul searching and get in synch with yourself.

One of the compensating measures I have is a Braintrust with other solo founders. It's a pretty good place to bounce ideas off of other people in similar situations. Let me know if you are interested in joining.