Intermission 4+

Excellent - 9.5/10

Positives: Seems to work as advertised. Reminder is friendly and helpful (it's amazing how fast time passes by). I like that reminder covers the whole screen so I can't ignore the nag as I can with other reminder systems. As you can see in the screenshots, it lets you set your desired repeat frequencies and break lengths using a slider having discrete positions, much like Apple's slider for the Energy Saver System Preference. That's great if you like that sort of constrained selection. I would rather see a more continuous, analog selection mechanism so I'm not stuck with choices of either 15, 20, 30, 45, or 60 minutes, when I actually want to choose 18, 25, or 40, etc. Fortunately, at the end of each slider, it provides a "Custom" setting via which you can specify precisely the values you want. Sweet.

Cons: I would like to see keyboard shortcuts for the Snooze and Skip buttons so I don't have to drag the pointer to them. Really want iOS and Apple Watch versions for when I'm sitting too long in a location other than in front of my computer (e.g., snoozing in a meeting, talking at the kitchen table, chilling in front of the TV, etc.).

Overall: It's already helping me get off my budt and improve leg circulation more often than I was without it, which should improve long-term health. Worth the modest price.