He was very effusive in his praise of the features.
The definition on wordnik shows a lot of words that gives me the feeling that effusive has a negative connotation:
- unrestrained
- excessive
- extravagant
And the related meaning of a volcanic rock that is pouring heightens that feeling.
Is effusive a negative word or can it express positive connotation, too? Does the connotation change if I replace effusive with gushy?