I plan to be in South Korea for 14 days this October. Does anyone recommend the T-Money card over the Seoul City Pass + card or vice versa? I keep reading conflicting information. Are they only differences that the Seoul City Pass + costs 500 won more and comes with a set of coupons? Thanks for any info!

500 won = @50cents so even getting one discount would seem a good deal.

Having said that, I've only ever used T-money card which worked great.

(Lucky you, having 2 weeks!)

Another difference is how widely the cards can be used. The T-Money Card can be used in many parts of South Korea, not just Seoul. (And with 14 full days, you might want to travel beyond Seoul.) The Seoul City Pass Plus is not valid anywhere outside of Seoul.