My aunt and cousin took that tour the year before lockdown (2019) and enjoyed it, although it would be entirely too much lost sightseeing time riding on a bus for me: at least 3 hours each way, not including transport time around the coast.
If at all possible, I might encourage you to take trains to Pompeii, hire a guide at the site, or join a tour which starts at the excavation, such as this one ("Pompeii Walk: from Pompei") if they're running them during your stay in Rome:
https://www.sharedtours.com
Going by train versus road shaves a significant amount of "sitting" time off the journey as you can get there faster. Lots of people do it, and you'll get help here talking you through how to do it.
I'll throw this out, although I've not done it, don't know anyone personally who has, and so can't vouch for the quality. It's a bit pricey as compared to the bus tours BUT if you really want to do the scavi via escorted tour in less than a full day, it's an option.
https://citywonders.com/rome-tours/pompeii-from-rome-tour