Should I buy it? (BG1)

I was always interested in DnD (even though I never played it) - I just love the overall concept and the endless possibilities, as well as the usual medieval setting.

Now, I recently started playing BG3 and everything about it is amazing, especially the combat mode. I’m well aware that BG1 and BG2 are older games and it wouldn’t make sense to directly compare them to BG3 (especially graphics-wise), but what’s most important to me is the concept. For example, the story and the overall mechanics. Is it fun to play?

Just tell me your experiences and what you like/don’t like because I really know nothing about it. I like to play older games every now and then (some Zelda and Final Fantasy) so “non-polished” game mechanics shouldn’t be a problem for me.