I'm subscribing to Ultra anyway, but with Sync for Reddit, I always enjoyed the option to fall back to "Pro," if I let my subscription lapse.
So your a previous sync user? Something that made me pull the trigger was remembering just how much time I spent using sync the past couple years. I had a shitty chain restaurant burger earlier today for about $20 that I regretted. I think spending $20 on an app that I use for a couple hours daily is well worth it imo.