I agree. Depending on the person they may not respond well to what they perceive as pressure or in secular terms a ‘hard sell’. Personally I wouldn’t mind it because I like to argue and debate, but not everyone or even many folks are like that. I would tell the person to feel free to ask any questions and to not be afraid of offending me. I think often times what may be perceived as offensive questions are the most helpful as they get to the root of a problem.
It depends on the Protestant. I was one and when one I didn’t like the modern Christian music at all. My church was one that had more traditional hymns. The first Mass I went to was daily Mass and I loved it. I loved the quit contemplate nature of it.
If a person is relying on feelings to judge the value of worship you, as someone trying to reach them, have a challenge. I’m not sure what to do in that situation but I think you really need to get them to look at it differently. It might be helpful to point out how love is often misunderstood as a feeling. The most loving act can be to do something while not having a feeling of love. Worship isn’t a feeling but an act.