They offer great online services, as well as chabad centers all around the world with free food and internet access as well as other useful services. They have a lot of money which I don't really know where its all coming from. Presumably "donations".
They are very warm and friendly and "understanding of where you are coming from". Lots of "love bombing". They have an unlimited amount of time to devote to your questions, though many of the answers seem "canned".
They try to sell themselves as the "real Judaism" by being extra-stringent with the law and implying that anybody who isn't following the extra stringencies is not a "real" Jew. These stringencies are EXTREMELY demanding and intrusive on ones private life. They dominate every aspect of you're being and, once you're hooked, if you don't "do it right" there is shame and social ostricism galore.
They do extensive outreach to "secular" Jews, and even to non-Jews as potential Noahides. They also offer "fast-tracked" conversions for gentilles (which are looked at suspiciously from outside the Chabad cult). They have even gotten far enough as to convince the United States government that they represent "real" Judaism.
They do NOT represent real Judaism. They worship their Rebbe as the Messiah. This is idolatory. The number one sin in Judaism.
Also, real Judaism does not proselytize. It actively rejects converts. A "mitzvah" which was done through any form of psychological coercion doesn't "count". Any act of obedience to God must come from FREE WILL. He wants us to love him, but he can't FORCE us.
How do I deal with it? Alert as many people as possible. I suspect it will eventually break away into its own "religion" eventually. (All the while claiming to be the "real" Judaism).