There is great stuff to say Ruby and RoR. But I have yet not experienced the "smile" that DHH is describing. Especially when I have to read and understand the code written by colleagues (or myself mind you). To do my job I had first to become a master in grep to find where stuff come from and deciphering half assed documentation. Mostly because exploring objects with hundreds of methods is not my cup of tea. I also enjoy understanding my tools, and RoR is, in my experience, not particularly easy to understand. This doesn't put a smile on my face.