So far, I've adored this program. I'm such a fan of it--bought it and bought the custom themes pack, too. It's genuinely so pretty, so easy to get into the spirit, and I've hit my goal every day I've used it. I catch myself looking for excuses to use it. You did a wonderful job.
I've talked elsewhere about wishing the "secondary emojis" were more customizable, as an autistic girl with a personal discomfort around faces who very much likes a simple, pleasant, faceless setup. I swear, if an emoji pack ever releases with more emoji options and customizability, I will pay $50 on it and immediately go and write 4,000 words. That's my pledge. It would make my day.
That being said, I've been cranky enough about this one tiny silly thing. This program has wonderful sounds (big fan of the ASMR options, I'd love more expansion of the soundscape in the future, too!) and a great, simple UI. The backup feature saved my bacon last week, and everything is almost completely stable and pleasant to use. Aside from the "timer" others have requested, this program is everything I ever wished Write-or-Die could have been, and I'm going to keep using it for a long time to come. I'm going to use buying the rest of the themes as an incentive for finishing my projects.