Most of the time our choices are not based on our primary experience but hearsay and experiences of others. For example, most of the time our decisions are based on what others suggest or what the brand ambassadors promote. Our decisions should not be based on hearsay but on experience. That applies to Christian faith as well.
The psalmist who sang 'Oh, taste and see that the LORD is good' (Psalms 34:8) was recommending his faith in God. However, his invitation is not to follow his faith blindly but to experience God first before committing. There is some place for the logic 'It works for others so it must work for me too.' However, it should not be based on such blind trust but we should experience God on a one-to-one level. First-hand experience of God is important.