What do you think about this denomination?

I was raised in the Lutheran church but for several years now have been attending a friends church which is an embly of God church. This was quite a change from the traditional services to very contemporary. But felt I could be flexible enough to adapt. However, I have found some things that make me wonder about this church. For one the pastors messages which I really like tend to follow a self-help them. They don't tend to cover the bible stories or verses as much as I expected. Instead many of the messages somehow incorporate a page in the bible or story and expand into how your can get past trouble, or lift financial burden or move forward. Among some of the topics. However, as much as I like the self-help in my experience church was to learn the scriptures and understand them to have a closer relationship with God not self-help. In fact our focus is not supposed to be on ourselves. Then people can go upfront to be prayed for. people in this church give testamonies on several occasions it has been they have been a drug addict, armed robbery commited a list of crimes but now they're a christian. It's not that I expect that people not ever have a past but it seems like several testamonials have been like that. In addition, there is the speaking of tongues and lutherans believe this is a gift that certain individuals can have. However, there is this man who every service on a certain day will start speaking in tongues. He goes on for two or three minutes. Then the pastor will translate to the congregation what he said in english. I find this questional at best. If someone was speaking to me in english for three minutes. I would have a difficult time remembering what they said. Let alone in tongues. Yet the pastor recites for three minutes what was supposibly said. I feel like he just makes this up. Then this church is very particular about everything fitting into an age category. plus the people who stand on the stage must all be wearing matching colors. the front of the church is likea stage and they have these huge theater curtains that can be dropped. Quite often that is how this church seems to me like it is a big production and not geniune. I'm not saying that the people who attend there are not geniune in their faith. But the approach seems like it is too emotionally driven they play emotional music at just the right to bring out emotions. Also it seems like with the scripture self-help sermons the goal is for self-help. what can the pastor messages do to help me out . There seems like there are are an overabundance of self- more than usual I've met some very self-absorbed people there who seem to like drama. It's not that I'm downing this denomination but I really don't understand it. Could someone explain the embly of God denomination and maybe explain some of these things.