They are not bad here and there. They are however bad when you cram them all over the place, unless you are going for a particular style. Long ago I used this

They are not bad here and there. They are however bad when you cram them all over the place, unless you are going for a particular style. Long ago I used this tool for my thesis and I think it did help me with the stylistics. Including pruning too many, too long sentences.