I can't think of anything I've bought in a long, long time that was a bigger waste of money than my S2. It's slow. The screen is slow to respond. I use the Samsung web browser I can't tell you how much I enjoy hitting the "X" to close a tab and watching it flash and then do nothing... over and over and over. The WiFi is pure crap. I can literally be standing 5 feet away from my dual band router and only have the 2.4 band showing with 2/4 bars strength. I constantly have to turn the WiFi off and on again to see both bands and to get a better strength. My Galaxy Tab4 with KitKat blows it away. I can have both tablets side by side at work, on the same network and while the Tab4 will have a 4/4 strength, the S2 will float between 1 & 2. Marshmallow made it even worse. I'm sure lots of people will tell you it's the best thing since the big bang. I think it's junk and would never get another Samsung tablet.
Do you read comics? It's great. Do you watch videos off line? Fantastic. Is being able to do those things worth $350? S**t no.