There are a few issues: stacks sometimes partially complete and you are left with a bit of a mess; stack creation has insanely long timeouts and a lot of retrie

There are a few issues: stacks sometimes partially complete and you are left with a bit of a mess; stack creation has insanely long timeouts and a lot of retries, so it often sits there for 15 minutes before eventually failing; and deletions can fail part way through because there is some dependency that isn't obvious (and which they don't make it easy to find). I still like it (infrastructure as code is cool), but it needs more work.