A taxi from Incheon Airport to Myeongdong Station for the K-pop festival

After years of dreaming, I’m finally flying to Seoul for the K-pop festival. Since I’m staying in Korea for two weeks, I have stocked up a lots of outfits and makeup. Also, I plan to bring back a lot of merchandise, so I’ll be arriving with a heavy suitcase. I need to get from the Incheon airport to Myeongdong quickly. I’ve read somwhere that a private taxi is the most reliable option. If you don’t want to get lost in the Korean subway. Has anyone used the Gettransfer for this route?My friend spoke very highly of this service, but I'd like to hear more about it before booking a transfer. Do the drivers help with my luggage? I definitely can’t carry a heavy suitcase on my own.