> R ... The language is just a joy to use. My experience has been the exact opposite. R is great as an interactive statistical environment. But if you need to

> R ... The language is just a joy to use. My experience has been the exact opposite. R is great as an interactive statistical environment. But if you need to build data-intensive applications in it - it's still powerful but somewhat slow and also a bit of a mess: many exceptions, special cases, strange design choices and multiple ways to do the same thing. It can get the job done, but there is an unpleasant learning curve to get used to all the weirdness.