Islam does display much evidence of spirituality, yet in nearly all the cases I've observed, those cases are counterfeit by using either the flesh, worldly works, or by adversarial spirit, all indicative of a false religion.
For example, God has revealed to us how He regenerates the spirit and under what conditions such a rebirth occurs. This occurs through faith in Him. A great peace accompanies such faith, but if one denies Him, there may be a temptation to counterfeit that peace.
I have observed such a counterfeit attempt in much of the Islamic architecture, many structures which are similarly established in the spirit domain, and I have observed it in blood letting ceremonies by many Muslims, who first work up their emotions through glandular excitement to synthesize some aspects of spiritual peace, but by the flesh rather than the spirit through faith in Him through Christ.
Another appeal to counterfeit what He has provided is an attempt to perform human good works as a substitute for Divine good works through faith in Him, in order to dissuade the conscience of the soul from discerning false spirit.
Morality is not salvation.
Salvation occurs with a simple faith in what God has already provided and is accompanied by a regenerated spirit, which is only provided by God, His grace, and His work. For these reasons and observations, I find the root of Islam which is presented as a religion to be a false relgion.
Does that guarantee the truth of this religion? Of course not.