Main reasons for my 6.0 rating

Cons
1. Messed up life lessons
- Some life lessons are great, but some are bad. Young viewers who don't know how to discern these things might mess up and follow wrong examples from this show.
2. Main Lead has too many red flags but ends up getting the girl.
- You'll know when you watch.
3. Had great potential, the pilot episode is great, but goes downhill.
- It no longer lives to its title, "Start-Up" but begins to become "Love Triangle"
4. There are some scenes that are better off gone.
- There will be almost 15 minutes of your life watching the main lead cry, to the point that seeing his crying face annoys you.
5. Wasted Character and scenes
- In Jae, another main lead was a wasted character. She's definitely more interesting than the FML but ends up becoming a cameo for every episode.
6. Poor Character Development
- Almost not visible, but the characters themselves have to mention it. "I changed, didn't I?"
7. Your typical, predictable drama
- Don't expect any plot twist.
8. No chemistry between the ML and FML.

Pros
1. You'll meet Kim Seon Ho, if you haven't.
- One of the best second leads, sets a great example for all [except being too kind, people abuse kindness].
2. Have an overview of start-ups
- Since I like the business world, this show can give you a briefing with regards to starting your own business.
3. Kindness
- The best scenes are the ones with kindness in it. Look forward to Grandma's scenes.
4. Cameos
- Se Yoon and Jin Goo's cameos are great.
5. You'll get to experience second lead syndrome, maybe.
- Experience is a good thing, I guess.
6. Great OSTs
- Needless to say, most of the OSTs are catchy and you can listen to them anytime.

But for me, Han Ji Pyeong stole this show. Despite the many problems I've encountered in this show, he was the only reason I finished it.