The best online banking system in Germany
(+) Customer support is very prompt and helpful. 
(+) Ease of opening bank account at N26. Takes few minutes. 
(+) Blocking cards and restricting use in foreign/domestic stores is a very helpful feature. 
(+) Spaces (along with main account) helps keep savings away from unwanted expenditure.
(+) Instant transfer between N26 accounts. 

(-) Over draft feature does not work for most cases. 
(-) Not sure if you can apply for loan or even receive loans. 
(-) Limits on free ATM withdrawal is very less(2 for most).