I've been happy with DigitalOcean, although they recently laid off their technical documentation team, which was terrible news. Otherwise, it's been rock solid and performs well.
DigitalOcean is already more expensive for the same performance (as in, when you actually benchmark machines). I moved my workloads to Linode and cut my prices in half, so a 20% increase still leaves it as cheaper.
I suppose as usual it depends on what you're doing. For boring application hosting, DO has been indistinguishable from Linode performance-wise.
DO had excellent technical documentation, okay support (I really miss Linode's), and has been regularly churning out new products. For someone that doesn't like moving infrastructure around, they are a good long-term bet.
The apps I made were very CPU and Network intensive- in one case it was a web crawler[1], the other was a github application that had to scan and review repositories fairly often[2]. CPU ended up being the ultimate bottleneck, and Linode performed far better.