I'll keep this review simple, as the product itself isn't overly complicated.
First of all, get this plugin while it's free (until Nov 22 2017)! Soundtoys is known for making quality plugins, and they haven't let us down with this new little gem. As a quick aside, check out their student discounts, they're phenomenal. This product is ideal for vocals and drums, but can be used on anything really. Don't let the title "Little Plate" fool you, you can have up to infinity decay time for a HUGE sound. Here's a quick breakdown of the various parameters.
Decay - Set from 0.5 seconds to infinity. Sounds best when subtle in my opinion (especially on vocals), but can be used more extreme as a more artistic/creative effect. One big vintage looking knob is used for the decay time, and it's very smooth to help set the exact decay that you're aiming for.
Low Cut - Very useful as this reverb is quite warm. Don't forget that reverb isn't naturally very bass heavy, due to the loss of low frequencies once a sound has bounced off of a surface. That said, setting an appropriate amount of low cut to your verb will help it sit in a more natural sounding space. Set to taste.
Dry/Wet - you know the drill. Set this fully to wet and drop it into a return track, then dial in the amount of reverb you desire on specific channels.
Mod - When this switch is turned on the reverb tail will have more variances to provide a more natural sounding reverb. I would use this on more acoustic genres, and leave it off for a more digital/exact sound.
Presets - Categories are 'Basics, Drums, Vocals, Extreme, Default, and User'. I really like the 1 second warmup, and 2 second warmup vocal presets on lead vocals. Try dialing in just enough that you barely hear the effect. Don't forget to save your own user presets once you've tweaked the presets given to you.
I've recorded a walkthrough/tutorial video that will help show this unit when used on a vocal part. I have many more music production videos pending, so please subscribe to stay posted for more videos in the future! kfhkh *see link below*.