Starting with what? Also, depends on what you call nice.
There are no Tagalog word that starts with letter Q. In Filipino alphabet there is no letter Q.
Kindhearted is a nice word. Knowledgeable is a nice word.
Harlequin.
Questions
quart
quick
qi
queenly
quote
LustreLoveLikeLimitlessLovelyLadyLimelightLusciousLucky
The word could be quietness, quickness, or quirkiness.