Plenty. I did not like the way they kept promising things would turn out, only to have nothing ever turn out like they claimed they would. Sisters would not want me around, and they would tell me that it would change (it only got worse), and they told me to just meet other men (itself a reason for me to go apostate).
I didn't like the ever-increasing workload. They were hinting that my being single was a blessing, since I could (=was expected to) do more than myself plus any kids; that is mathematically impossible since anything kids would have done would have been added to my own work, and adding two positive numbers always gives you a number that's greater than either one). And, no matter how much I did in field circus, they always wanted more. I would have a hard time going in at noon, since they always had some specious reason for me to have to stay out until 2:30 or later in the afternoon. Of course, they always had something to say about my dress and grooming.
It was also tiring. They just don't understand that the average Witless does not work 9 to 5 like everyone else. Instead, they usually work nights. Putting a meeting at 7:30 in the evening is like putting a meeting at 3:30 or 4 in the morning for worldly people. And you can't stay up all night working and then go out in service all day and go to the meetings that night. Time was also siphoned off into the work, which seemed to go on endlessly.
Then the mathematics didn't add up. As I did well in freshman algebra, I could think of equations where the line, when graphed, is close to zero and getting ever closer, but will absolutely never reach zero. I could see Armageddon as paralleling this: close, getting closer, and yet will never actually get here. For sure, no reason to stay in and waste my life and time on this. And there was the issue of children being born--and having to be reached. When one group is reached, the next would come of age and have to be witlessed to as well, starting a new cycle that could go on forever. It didn't add up.
I think next time they had better come up with a specific contract. And if the promises are broken, the sisters continue to be aloof to me, or deadlines are missed, extremely harsh and devastating consequences to the Watchtower Society would result immediately. Articles that are mathematically open-ended would also have to be closed off so only a finite, known time would have to pass that I would agree to in advance (that cannot be extended without setting off extremely severe consequences).