Subjective feelings must be based on objective truth. We should have an emotional response to the Word and presence of God (as a Pentecostal, we know about emotionalism and intellectualism).
The danger is that many religions, including Satanism, have burning feelings (look at the Muslims) about their religion and sacred writings.
Just because the disciples experienced His power and presence through Scripture and the Living Christ in their midst, does not justify a subjective apologetic for every false religion in the world. It is possible for the flesh or demons to counterfeit this. We need discernment. I have powerful feelings too. Is my experience more or less valid than yours? Are our experiences the definitive criteria for truth? If so, we are both right, though we have diametrically opposed views?!
The JW and Mormon meetings I have attended, left me with the same dead, oppressive, evil spirit-feeling that I felt in a Muslim mosque. My spirit is grated visiting false religions, while I sense His peace, power, presence, joy, love, etc. in Bible-based churches, regardless of the denomination. I still do not base my faith on these feelings. I can study archaelogy, hermeneutics, textual criticism, etc. and know my feelings are based on a solid foundation of biblical truth (vs presumption). I can study the Watchtower, Koran, and the history/works of Mormonism and objectively know it contradicts biblical truth or scientific research.
If the so-called Mormon prophets were hearing from God (instead of relying on feelings and fears), they would not have been fooled by the Salamander letters (unlike the anti-Mormon Tanners and others who discerned early on the fraud). Joseph Smith would not have rejected Judeo-Christian monotheism for pagan 'plurality of gods', etc. His subjective experiences/imagination put him in the realm of deception and an angel of light. You have another gospel and a counterfeit Christ (Gal. 1:6-10; 2 Cor. 11:4).
I feel it and know it based on research.
Bearing your testimony may convince yourself and others in your circle, but it does not change biblical revelation that refutes your church.