Ukrainians, do you understand hard core Eastern Slovak dialect?

I've heard people from Eastern Slovakia speak Rusyn (which is a form of Ukrainian) and I've heard others speak hard core Eastern Slovak dialect (the kind of dialect which is the most different from standard Slovak). This "dialect" sounded to me like a different language very close to Slovak Rusyn, maybe more slovakized. I had the impression that the dialect is closer to Rusyn/Ukrainian than to Slovak and is basically slovakized Rusyn.