It works really well. It's a subset of CL that it can compile though so you'll miss out on CLOS, restarts, etc. However the subset does include macros so it's serviceable.

It looks like there is an extension to Parenscript called PSOS[0], which provides conditions/restarts and something similar to CLOS.

[0] https://github.com/gonzojive/paren-psos

unfortunately PSOS does not use the current version of parenscript. It is based on an older and modified version.