Which Is More Important: Compatibility Or Chemistry?

A few years ago, a friend tried a paid dating service and then told me about the process. First, she had to answer a series of question on her preferences. Then, the company will try to find a person with the highest compatibility in its directory and set the meet up. Long story short, she met the guy with more than 80% compatibility. However, the first meeting went bland for both sides.

She asked me to meet her at our usual ramen shop to unload her experience. As a good friend, I obliged. 

"What seems to be the problem?" I asked.

"I don't know. I mean he's not bad, a bit good looking, has a stable job, well-dressed, well-educated and well-spoken too. But the chemistry was not there," she said.

"Did you have those uncomfortable silence in between the conversation?"

"Not really. The conversation went great, no awkward silence. It's just, something was off and the feeling is mutual."

As our ramen arrived, we stopped talking and dove deep into our bowls (we had our priorities straight). We continued talking about other stuffs later on. I did not think much of her experience, then recently I saw this video. Then a bulb just turns on inside my head.

You may meet a person who ticks off all factors in your preference list: height/weight/body type, skin tone, eye color, profession, age, religion, hobby, etc. But if the chemistry or attraction was not there, there will be no relationship.

However, the talk with my friend has sparked curiosity within. What are my preference factors on a guy? As an introverted only child, I think mine would simply say: a guy who can engage me in any topics and good looks would be a real bonus. Actually, the Before trilogy uses this as its success recipe.

"So will you be trying this dating service again?" I asked her before we parted ways.

"Sure, why not? I'm open to all kinds of experience now. And it's not as scary as I have thought," she said, smiling confidently.

Wow, isn't she so brave? I wish I can have at least half of her guts. I haven't had any thought of using dating service myself, because for me it's so hard to open up to a total stranger. But since I am now working from home and do not have any prospect of meeting new love interest, I might need to step up the gutsy game.

Have you tried dating service and get any luck with the match? Any recommendations?