Sunwaves 37 festival

Hi guys! Me and my friends want to go to some summer festival with mostly minimal, acid techno, deep house music(artists like shonky, reptant, jane fitz, etc.)but tickets to many of them sell out so fast… so we are thinking about going to Sunwaves in Bulgaria however we have some doubts. What do you think about this location? Is it normal that tickets are that cheap and still available? I know how it may sound but it’s first edition there and taking into account that there were problems in previous years and people are complaining we are scared that something may go wrong with this edition. Do you have any recommendations for festivals in Europe this summer with tickets available ? How about Paradise city? Or Off sonar?