Oh heck yeah. L-systems are pretty great. My one caveat there is (and this could have been from an older/buggier version of the L-system extension) it’s easy to toss something into the L-system code that breaks the extension temporarily while it’s live-previewing, by asking it to do something that expands infinitely or impossibly or otherwise similarly unreasonably, at which point if stuff just stops updating for you you’ll want to just hard-quit and restart Inkscape instead of waiting and waiting and waiting. So if you’re puzzling out some new little L-system variant, copy to clipboard often while you’re tweaking so you’ll still have your draft around if when/if it crashes on you.
I’d picked up a Cricut paper cutting machine in late 2016 (which has turned out to be a strong gateway tool to going for a Glowforge late this year) and had a lot of fun cutting out variations on L-system generations: