What new skills will they be bringing, if none employ a operator, marketing company or telesales person to do what your not good. Then spend your extra time on what your good at.
easy way to say this 1hour marketing consultant time cost me 1 1/2 hours cleaning time, but get ideas ect that would take me a week to do otherwise if at all.
Also found the bigest problem with a partnership is who does the most cleaning, let face it it will probably be you as you have most experiance, leaving you no more time free to do what you wanted to do in the first place but with 1 more wage going out.
Although it not easy, it's still simpler to fire staff if they are no good at their job that to get shot of a partner.
And like staff good hard working partners are hard to come by, especially if they are a friend and only see the benifits of being a CC and not the hard work.
However there are benifits such as they are more likely to stay with the company if they have cash invested, so they can see a return.
Good luck in your choice, I would vote stay on your own and get staff.