Yeah, it would work and be an easy install, but you'd need 2 (one for open, one for close).
The unit has selectable time increments and can be further fine tuned with the pot. The top automatically stops when fully open or closed, so you'd just set that time increment slightly high.
The only downside would be service mode, but you could add a 3rd controller on an independent "service mode" button with the timer set to 5-6 seconds to stop it halfway. You could then fully open or close it with the top switch when done servicing. In other words, the original switch would be for normal open/close one touch operation, then you'd add 3rd button somewhere that is strictly for putting the top in service mode.
As cheap as they are, I may actually try this someday
