How important is it to feel chemistry for your partner?
If you want a passionate, intense relationship, it's crucial. If the word "content" makes you feel warm and fuzzy, then it may be less important. Chemistry changes the dynamics of a relationship, and the more you have, the more powerful -- and therefore the more dangerous -- it will be. And that isn't for everyone.
It's perfectly possible to click with someone and have a lovely time together without ever feeling "chemistry" with that person. And controlled "sensible" relationships