Have you found any issues with performance? Offloaded SQL works for me maybe 95% of the time, but the other 5% I get queries on small tables taking much longer than they should:
And queries/connections that time out, causing sites to hang. PHP sites just get a PHP timeout and eventually eat up every available process in the FPM pool, and I get a "504 Gateway Time-out" with a Mono ASP.NET MVC site).
Originally chose the offloaded SQL since I thought performance would be better, but now I'm considering moving away from it due to the number of connection timeouts. My databases are fairly small and I've got a 1 GB VPS.