Stable coins aren't a smart thought. They are brought together and in the event that we got the hang of anything about unified undertakings at some point or another they generally end up as a trick. It is commonsense to utilize those coins every now and then particularly when you are moving between the trades yet I wouldn't keep my life reserve funds in those coins.
I can see where you are coming from in terms of a storage of value. That's why out of all these 'stablecoins' that were expressed Ampleforth makes the most sense because it can both store wealth AND be used as a unit of account. Have you read their whitepaper? They aren't even calling themselves a stablecoin