I went to an evangelical service the other week, just to see what it was like, and because it is a city centre church that is very popular locally, with a very big congregation, a strong sense of community and lots of projects helping people in the wider community.
There were a lot of things I really liked about it - it was very welcoming to newcomers, with everything explained clearly. The worship was very well-organised. The sermon was engaging, and at least as thought-provoking as any I would encounter in my home church. There were a wide range of ages represented, although most people seemed to be middle class. Although I didn't notice anyone with a visible disability, I got the impression that a lot of thought had been put into making the building and worship accessible. I'm not keen on the music of the service, but the band were very good. There was a screen at the front with a video count-down to the start of the service, which build-up anticipation really well and meant that everyone was ready. The people were very nice and friendly.
The only thing I really disliked were the prayers that the congregation would look hard at their finances and give more money to the church.
The rest was probably a matter of style - that style of worship doesn't make me feel any closer to God, whereas the woman next to me felt that way about my preferred type of church service. And I find the language of evangelical services makes me feel very uncomfortable, but that's partly down to my personal history. And there was no Eucharist, which is very important for me.
So overall, I don't think I'll be going to evangelical services on a regular basis, but I do think that they have a lot of things I could learn from.