Okay! Literally just finished the last episode. If you loved "Heartstopper" and the older "A Walk to Remember " this show is for you. It's literally the two combined, although with an open ending.

The first half is a sweet and adorkable rom-com, where you will fall in love with the positive overachiever and the troubled jock, and the second half is a more serious reach-for-the-tissues story about love, life and how we choose to spend our days on Earth.

You may or may not like the open ending, I personally thought it was good. Perfect for a positive outlook on life in general.
Definitely would recommend and will absolutely be re-watching!!