No, I haven't. I mainly work with Vertica and did some troubleshooting on a Redshift cluster. I've mainly read comparisons of performance and price/perf vs. t

No, I haven't. I mainly work with Vertica and did some troubleshooting on a Redshift cluster. I've mainly read comparisons of performance and price/perf vs. those platforms. Reading through their docs their semi-structured data support is similar to Vertica's flex tables. It's a handy feature, but not critical IME.