Hi bride,
I attended both EE and MPC. EE - before we decided to get married. For some couples, the topics or "activities" at EE is nothing new, coz they have already been doing it (talking things through and communicating with each other). My experience with EE is that, EE is more couple focused. Yes, you can chat with other couples, but most of the time, it's to communicate with your partner and share your inner most thoughts with your partner. The time spent is really about opening up yourselves to each other.
MPC - we enjoyed our MPC sessions too. While it's a little bit tough having to commit 6 Sundays (and each session @ SJI starts at 830am), going through that "tough" bit on Sunday mornings also brought us closer. It felt good overcoming that "obstacle" - like, yeah we did it together kinda thing. The sessions at MPC were also quite informative. And at each home session, there's group sharing, and there may be non-catholics in the group (so it
may feel like it's cathecism class). It can be quite inspiring, listening to other couples share their experiences. And when you share your own experiences to the rest, it's like, accepting yourself, kinda thing.
Overall, we enjoyed both EE and MPC, but we like EE more.
The essential thing is to be open and communicate with your partner.