Nikolai is an excellent Guide. A good communicator with an excellent knowledge, without "bogging down" with information. We mixed up our Tour schedule & Nikolai responded flexibly, to provide wonderful tours of both Peterhoff & Catherines Palaces, without compromising the quality of our visits. He delivered a memorable & most enjoyable tour, maintaining our interest throughout & succinctly answering our questions in an informative & interesting way. He is a strong, accomplished preformer. Great job!