Yes, I am in a services business...architecture and consulting.  I switched to BQE Core.  It has so many features that meet basic business needs that QBO just doesn't provide.  I am happy with it.  But keep in mind it is geared toward A&E companies.  

If BQE Core doesn't specifically work for your line of business, my accountant mentioned that her other clients use software other than QBO... and it makes their accounting and PM work easier.  I didn't specifically ask about the other software.  But she did hit the nail on the head....QBO is a generalist software that performs at an average level because it appeals to the masses.  Jack of all trades...master of none.