I'm extremely disappointed it had to end like this. Of course I knew it had to end someday, but I was frustrated when I found out they were going to cancel the show just before season 6.
In my opinion, they should have aired season 6, then stop.
And the ending was rather unclear, to me at least. What happened to Maul? What happened to Ahsoka? What happened to Rex and Fives? What happened to Hondo Ohnaka, to Cad Bane, to Embo, to Bo-Katan Kryze? I guess we'll never find out...