The team of people I worked for at SPMB was incredibly supportive - even when things were going poorly, you knew they would go out their way to get it right next time around! They are very responsive as well; if there is any sort of issue or confusion then someone will be quick enough on hand (for example, getting your file transferred over from SF).
We took our idea through an accelerator program run by them which provided us great experience but did not really help much financially so we left before reaching product/market fit. If this had been available sooner perhaps my business might have taken off more rapidly without having to bootstrap after launch myself like many other entrepreneurs do now :) However, all's fine! There isn't anything negative about working here, just wish I'd realised earlier how close everything actually lived compared to where i'm living!