I've been in AoG churches during two parts of my life. Once when I was a child, and now as an adult. I cannot believe how much has changed.
One thing I did NOT know until recently is that AoG is NOT a denomination. It is described as an association (or assembly) of churches with like beliefs. There is no "cookie cutter" idea here, like McDonalds, where you know exactly what one AoG church is going to be like because the last AoG church was like that too.
There may actually be, some remnant, of AoG that teaches speaking in tongues as a requirement for salvation... as an extreme on one side. Then, on the other side, I've been to AoG churches that actually suppress the movement of the Holy Spirit because they (humans) want things done "decently and in order"; which I think is a mistake since the Holy Spirit will always do things "decently and in order" (after all, He did right the book
... just sayin').
So, on the one hand, the AoG is a really wonderful organization that facilitates the movement of the Holy Spirit as an organization and as requirements for being a part of that organization. And, like most "denominations" (or organizations, as is in this case) it started out well, but man's pride has crept in. Some have gone the path of the "Holy Roller". Some have taken on being "slain in the Spirit" (which is wonderful... if it's actually the Spirit that has "slain-ed" you). Some have taken the stance, "yeah, we believe in the moving of the Holy Spirit, but just not on Sunday morning. It ruins the program".
It's the whole, "bad apples in a barrel" concept.
I thank God that today, my wife and I attend a really wonderful, Spirit filled AoG church in Roseville CA (not that we attend a Spirit filled AoG, but more that we found a Spirit filled church... that happens to be AoG). We know God led us here and we are now active and actually ministering to people, in the Spirit and from heart to heart. This church is well balanced and allows for the movement of the Spirit. If I have a word for the church, I can quietly share it with the pastor and he can discern if it should be shared with the church and will either allow me to share it, or will share it himself.
I say all this to say: when looking for a Spirit filled church, don't go to an AoG church simply assuming it is Spirit filled. Pray, ask God for a new church home. It may not be AoG. It may be another. It may be non-denominational. It may be Four-Square, Nazarene... or somebody's living room. God has a place for you. He will lead you there.