A good series overall, especially considering when it was created.
There are issues though!
1. The number of times you are watching it, enjoying yourself and then there is a 30 second period where nothing happens or the same words are repeated is just ridiculous.
2. The initial character developments are good, especially on the main character, which turns him from self loathing and semi-useless to an actually likeable human being. However, the series then cancels all of the development as they please and transform him back to useless at random points. To be honest it is just infuriating
3. I honestly don't know who the main antagonist "SEELE" is. No explanation is given and we don't even know if they are the antagonist or if it is Shinji's father. The series gives no indication of good or bad nor explains these organisations well enough. The series constantly starts to explain something and then drops the explanation leaving (me anyway) more confused than earlier. E.g. i thought the evangellion were robots, then they had souls, but thats it, no more explantion. I can handle robots, but angel robots with a soul inside etcetc is just confusing without more explanation.
4. They developed some characters and proceeded to just ignore them. These were the 4th child, the class prefect girl and Shinji's friend with glasses. You know what, include the penguin too, i liked the penguin he could have been fun.
5. The ending. Tbh the last two episodes were super confusing and had almost ruined the series for me. BUT, the last part of the episode clears up a lot of what happens. But if one final episode just to clarify had been released it would have been so much better. Was shinji in some kind of simulation from the start? Did he die and that was his final moment of thought (realising that he had done the right thing and would finally be loved as he always wanted)
Good parts of the series:
1. the storyline is really good, and has interesting philosophical concepts in them.
2. The battles, while frustrating at times as the standard "we lost connection to evangellion" always hapens they are full of suspense. Its not the standard instakilling of bad guys, but stuff goes wrong and leads to character development and is entertaining overall.