I think an $800 CompuTrainer is worth more than any other trainer without a load generator. You don’t actually need to plug the CompuTrainer in to a PC - you can 100% control it from the handlebar mount controller. Plus if you decide you don’t like it, sell it, and use the profit for another trainer.
Now, if the CompuTrainer is going to be closer to $1000, I’d pass and get the Wahoo KICKR.
I use a MAC book pro. Use a Computrainer. Use Trainer Road. HEAVEN! No problem running this setup. When I wanted to use the Computrainer software (old version) I ran it in Parallels. With the Computrainer you can precisely control your resistance load. The Trainer Road will do it for you. Simply perform a FTP test (or manually enter it) and all the workouts base the resistance off of that number. Probably the most efficient bike training you could have.