Note that the claims in that abstract were retracted because the authors messed up when benchmarking. Note the changed title and abstract here: https://cseweb.ucsd.edu/~lerner/papers/fp-printing-popl16.pd...
There is very exciting news coming up with printing floating point. Ulf Adams from Google will be presenting a new algorithm called Ryu that appears to be super fast, simple, and perfectly accurate. Assuming the claims are correct, Ryu ought displace all of the current algorithms.
I look forward to reading the Ryu paper.