I’ve tried it, and it’s amazing. It’s more than merely a front–end for rr, because with rr you are still inspecting a single moment in time in your program. Yo

I’ve tried it, and it’s amazing. It’s more than merely a front–end for rr, because with rr you are still inspecting a single moment in time in your program. You can rewind to past moments any time you want, but that fundamental limitation remains. With Pernosco you are really querying a database that contains all the information about all the states your program was ever in. It’s a superpower that you can purchase. I think the price is generally worth it, if you have at least a couple bugs to use it on every month. If you have more than 5 per month but don’t want to go up a tier, I believe you can pay “a la carte” just for the extras. If you have enough people, and you can afford the hardware to run it, I really recommend the on–premises installation.