It's certainly entertaining enough, but my STRONG recommendation to anyone wanting to start reading this is to spoil the ending for yourself before you do. Even if it's not something you like doing, in this case, do it. You see, the problem is no one likes the end to this series. In Click, readers are presented with 3 equally likely candidates for Joonha to end up with. She is in love with both the male and female characters from her past and meets a new male character that she grows to admire. There are compelling reasons for her to choose ALL of her love interests.
But this isn't why you should spoil yourself. The reason you should is how badly handled the final volume is. The manhwaga's note at the end explains that she had originally intended Joonha to end up with a certain character, eventhough another character became the overwhelming favorite. That should have told the author something right there: namely that her intended couple never got the proper development that they deserved. Up until the final volume, the lynch pin decision of the series seems to rest on what will happen between Joonha and [the popular character]. While all this was going on, the intended character should have been more active in the conflict, but s/he wasn't. At the very least, a confrontation between Joonha and [the popular character] should have occurred where things were laid out in the open about her gender and then they decided that they couldn't be anything more than friends. Unfortunately, that didn't happen. Nothing is ever resolved between them because the manhwaga decided to take the easy way out and throw in really stupid soap opera-like plot complicatons to break them apart. Perhaps this could have been overlooked if the relationship between Joonha and the intended character got some needed development at that point, if s/he had been there to pick up the pieces, so to speak, but it didn't. Instead, that turned out to be the last chapter. Ending the series that way left the popular character popular and readers of the series highly unsatisfied.
So don't get your hopes up or get confused about the way it's going to go before you get to the end, otherwise you'll hate yourself for reading this series. The choice at the end wasn't a bad one, it was just horribly executed (leaving you feeling as though it was a bad choice). In part, what made this series entertaining is that all the love interests WERE in fact good choices. But overall, the best part of the series was watching Joonha's development as lialah pointed out. Her struggle with accepting her new gender was well done as was witnessing her transformation from a chauvanist into someone who accepted women (and her own femininity). So do give this manhwa a shot, but just be a little careful with it.