Sure! Here's a particularly big one I built when deciding whether to invest in Walmart: https://www.getguesstimate.com/models/10935

Here's another one I did to ballpark a pension plan: https://www.getguesstimate.com/models/11133

Another thing I like is that you can do simple statistical reckoning for it. For my job, I often have to benchmark something several hundred times with or without a patch applied. It can be bit difficult to put "on average x% faster" in context when the benchmark is noisy, but Guesstimate allows you to answer questions like "assuming somebody ran one run of this benchmark with the patch, and one run without it, what's the expected range of performance improvement that they'd see?" with the actual numbers that you get out of the benchmark: https://www.getguesstimate.com/models/11850