ESL One Cologne has always been the marquee event in the CSGO Calendar. Despite not being deemed as a major in this 2017 calendar year, it is still seeing an active participation from most of the top CSGO teams. We do not have Astralis, but most of the other top teams are going to be present at the tournament. This makes the tournament almost similar to a Major in CSGO.
The level of competition and the strategizing against the teams will be at its peak. It will be extremely interesting to see how the matches pan out.