I have had a chance to review Scale's new hybrid nodes and am just finalizing a review. These nodes are going into a customer deployment where we are collapsing 8 VMware nodes and a couple dozen physical servers into 4 Scale nodes. So far, the experiment has been a rousing success.
I also run my own company on 3 (admittedly aging) HC1000 nodes. After ~1 year worth of running workloads on it, I don't have any complaints. It has survived power outages and dead drives, network weirdness and other things. It does its job.
Scale isn't as feature rich as VMware. It never will be. For the target market, however, that simply doesn't matter. Small businesses make up 98.2% of employer businesses in Canada. Enterprises (500 seats and up) make up just 0.1% of employer businesses. In the US the percentage is a little different, but the rest of the world looks very much the same.
So Scale is one of a handful of vendors that serve the 99.9%. They don't meet every niche. They don't cover every possibility...but they solve most problems for a price that SMBs can actually pay. Perhaps more importantly, they listen. That's something few vendors do.
I can't speak to other geos, but in Canada Scale is doing quite well. Some of their competitors (Yottabyte, for example) are making headway here too. Even Tintri - who normally focuses on bigger fish - is starting to find its feet in the mass market.
The old guard of server vendors are no longer the only ones. Marketing is starting to make an impression even amongst SMBs. More importantly, once you give a lot of these new vendors a try, it's hard to go back. They make ease of use kind of their "thing".
All the above being said, take precautions. Do a POC. Don't buy blindly. Test the products first to make sure you understand all the differences in UI, that you know how move workloads across, and that you are comfortable with the featureset provided.
You needn't fear the new crop of vendors as much as many doomers in purchasing clinging to their junkets, hookers and blow will say. But you do need to keep your eyes wide open; new vendors are a new mix of features and a new support commitment. Most will be happy, but better safe than sorry.