not sure if the gothic explorer is that same as the Korina explorer (which i think it is) but i have been playing the korina explorer for a little over 2 years now. Its my go to guitar over my ibanez 7 string, my LTD and my jackson. I walked in to guitar center and played a shit ton of guitars and when i got to the explorer i instantly fell in love. When you play it at first if you really dont like it because you have to get use to the big and bulky bridge, but after you get used to that and you set it up to your own preference it is amazing. I have played my explorer from standard all the way to drop A with no problems at all. The stock headstock tuners are solid, and my guitar never goes out of tune. I did play an actual Gibson explorer once (although it hadnt been setup in over 2 years, felt like shit) but even after that i really didnt like it. Just go play one and decide for yourself
Edit: After about a year i changed my pups to EMG 81/85 and it sounds incredible. I havent had too much experience with a expensive guitar ($2000 range) but i have never felt the need because my explorer does everything i need it too. Although i really want to get a guitar from amfisound =D