I was involved in a massive rewrite of a website from C to Java a while back. One coworker observed that, when they were coding in C, it took a lot longer to get anything working, but once you did, it was pretty solid: C had a tendency to just crash if anything was wrong, so you'd work for quite a while before you got something that didn't crash consistently. Java, on the other hand, allowed you to get something working (that is, running without crashing) much quicker: but the things that were out of place were still there, they just caused harder-to-find problems that were much more likely to become customer-facing before they were caught.