No. I got homesick after a year and a half and moved back. I've been working remotely ever since with no commute, which I find awesome!
TL;DR Yes, you can live right next to the office if the funds allow it. My budget for rent was 1200 euros per month, which makes renting within the ring almost impossible.
edit: spelling
As for the bike: The trick is that you need a lock that's at least half the bike's price... that deters the thieves, who will go for easier-to-steal ones.
I got my bike stolen twice when I lived in Amsterdam, and even wrote a post about it, asking for advice:
https://bicycles.stackexchange.com/q/36959/24429
... and got some pretty good ideas.