Mindaugas was extremely professional and a fantastic guide.  My dad and I were looking for someone to take us from Kaunas to Vilinius with stops along the way at Trakai Castle and Pažaislis monastery.  Mindaugas ensured we made it to those sites plus included a stop at the Užutrakis manor and lunch in Trakai Castle.  He was knowledgeable about history and culture and was happy to answer all of our questions.  Would definitely recommend him for anyone visiting Lithuania!