A long review doesn’t automatically make it a great review if theres no substance to it, so don’t add filler and think that’ll get you a tester. If the review tells you everything you’d want to know before buying it, then its a good review.
The way I mostly do my reviews is to describe the item to someone who has never used one before. If I have more than one of the same item, I would compare sometimes, especially when it comes to power and types of vibrations.