Mr Terlecki's teaching is top rate with no BS. He teaches a combative system with emphasis on utility.
This is no Wushu school, if you want flashy pajamas and flair there are other choices.
Start with basics and great coaching the rest is up to you. He will work you hard and help you find new limits for sure.
I would avoid Terecki at all cost he is a student of Olaf Simon, Temple Kung fu. What he teachers is a bad mix of kempo karate, karate and very bad watered down kung fu most of which he stole from youtube, books, videos and local Sifu's. He is not certified by anyone except Olaf Simon to teach. He will over charge you and rob you blind.