Short: It's so over the top in places you can't mistake it for anything trying to take itself seriously. I loved the various characters and the general story,. I liked the little nods to other things like a scene from Parasite and it had lots of energy. It's not going to be top of your list, but it's fun and easy watching. I certainly enjoyed it. I don't think it was bad at all, it was silly and OTT but also lots of fun :)

Detail:
Ok first I have to call out the little cameo moments that I thought were amusing as heck. In one, the father goes to be a driver for the ex-girlfriends family and takes a test drive - and it's ripped straight line for line out of Parasite, and also refers to how she had to fire the last guy because he stank from living in a basement (which the guy did in Parasite). In another, Ahn Chang Hwan turns up in the store, and immediately Dal Shik - played by Eum Moon Suk, who was also in Fiery Priest along with Ahn Chang Hwan - start doing a riff where Moon suk starts asking Chang Hwan to say "peter piper picked a peck of pickled peppers" just as his character did in Fiery Priest. Later, he re-assumes that role when he goes to help Saet Byul who visits someone that's trying to blackmail the store - he dresses up exactly as his character in Fiery Priest, including the voice etc. I love these little cross overs, they don't matter if you don't recognise them but they're a fun "aha!" moment when you do... though they perhaps tell me that I watch too much KDrama, I shall meditate on that point as I watch another KDrama...

Fiery Priest had the same Director, Lee Myung Woo - so you can kinda expect the same slightly OTT pace and style to everything.

I also noted the similarity between Ji Chang Wook's name (the ML) and Kang Ji Wook (the character name of the actor friend of Saet Byul's) :)

The main leads have some great chemistry, and I really liked the independence and strength they gave Saet Byul. I also liked that Ji Chang Wook's character knew when to back off and leave her to her own thoughts and come to her own decisions no matter how hard it was for him, he supported and encouraged when it was right and backed off when it was needed.

I think the take away message from this is about really understanding what's important, understanding what defines success for you - is it money? what is happiness? Once you understand that (and there's no point fooling yourself, only you lose out), you can make decisions you might not otherwise have made and find that happiness.

Second leads Seo Ye Hwa and Eum Moon Suk make for a very amusing pair as they go through turbulent times (probably more over the top than the main leads) but are also heartwarming in how things develop between them.

The drama has the usual tropes lined up almost numbered so you can call them out one at a time. Multiple Love triangles, the wicked girlfriends mum (well, ex-girlfriend but interfering none the less), misunderstanding after misunderstanding, you name it, it's probably there. But, as I said, it's kinda all hammed up a bit so rather than frustrating it becomes quite amusing more than anything.

Oh, and those endings where something key is about to happen and the screen freezes for it to conclude next episode, yeah, few of those, swore a couple of times at the TV for that :)

Probably not everyone's cup of tea but heck I enjoyed it :)