It's a very love-it-or-hate-it episode.
I thought it was one of the worst too, but some people liked it. The main problem is its placement in the season...it's far too slow for when it occurs. It was basically written last minute due to needing a bottle episode, and it kinda shows.
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Ginhyun
http://img.imgcake.com/nio/7ginpngam.png