As a single founder if users are complaining about something then I am the only one there to fix it so the most important things (the ones being bitched about the most) always get done first and if it needs to be implemented as a product feature I don't have to discuss things with people like i do at work.
At work everyone wants to feel as if their opinion matters even if it does not. We have to get a consensus on things and trade emails, phone calls, text messages etc... just to get a simple feature out the door or any similar task.
I can just get in and fucking do it. We spend so much time at work justifying shit to morons that want to play devils advocate or salesmen that are asking for random things that they don't even really understand.
As a single founder when I develop I keep in mind that I will need to maintain and manage this feature myself so it is mandatory that all features have proper test and administration tools that facilitate this. Then if and when something happens I can quickly deal with it and move on to something else.
At work I am usually outvoted since we all agreed to do "group product development" (Note: this was done to ensure the authenticity of the site within its niche (xxx)). Even though I make sure we have test the maintenance portion is usually seen as a luxury so we go without until something fucks up. At that time a day or so is spent paralyzed by indecision and a few more asking how to fix the issue with minimal impact to users blah blah blah it eventually gets done but its never smooth.
Oddly enough I think that one place being a single founder also helps is in customer service. I always make sure that every one gets an answer to their questions. And 2 (or half lol) of my agency clients actually have my cell phone number and call me whenever they really need something important or right now. Some people would think thats lame but what I have found is that it makes me focus on what the most common things people call me about are and work them into the product asap so that I don't have to be involved in the task.
Anyway... this is just my two cents.