I've had a CompuStar on my diesel Ram for about 5 years now with no issues except I've been a little rough on the transmitter and it's a little scratched and beat up.
It is a 2 way which means it sends a signal back to your remote to let you know the truck is running.
It also locks and unlocks the doors, has a delay to get the heating grid warmed up and an optional turbo timer to let the truck idle for a few minutes before shutting the truck off.
I also bought an Autopage 2 way for the wifegod's car a few years ago and it has also worked perfectly and has been used in a few different vehicles.
I had both remotes installed by professional shops.
