I like that you can use multiple databases at once (I've used 2 different ones in my own sites). The interface is simple but still very powerful for what its doing - searching/replacing content with other text or images from another source easily! You have full control over where each replacement goes so there's no chance of something getting missed out by mistake when copying across lots of pages etc., just make sure everything looks right first time before clicking "replace". It has made our life easier during CMS migration projects as we don't need any SQL knowledge which saved us loads of money having someone else do all this work instead.