Finished up last night. First few episodes were pretty boring, took me a week to get through those. Didnt get that 'hooked' feeling till ep 4 or 5, then i binge watched the rest yesterday.
The whole side plot with '8' felt weird. I thought she was gonna come back and help 11 in beating the mind flayer or something. Instead, we get a hint of her early on, then nothing till near the end and then only to help 11 power up.
Otherwise, i liked this season. It didnt feel as special, but nothing was ever going to live up to the magic of season 1. The epic moments were better, but the bad moments were worse. I.e. the highs were higher, lows were lower. More inconsistent then season 1 but about as good, imo, minus the out of place side plot.