Most droplet kits and home builds only allow a single drop, and perhaps a size variation only.
The ability to set of multiple drops all of chosen sizes puts this head and shoulders above the rest. Single drops are dead simple to set up once you understand the physics of it. I'd highly recommend viewing these on YouTube (especially the very high speed video showing the entire sequence) so that you understand it initially impacts and then forms like a Tulip before the displaced water rushes back to the centre and forms a Worthington Column.
Once you understand the time sequence, it is very easy to alter the flash timing back and forth to catch what you are after. Then you can chase the multiple shots for a great deal more variety. Do you want a "tulip" with drops above it, a Worthington Column with drops about to impact, or the "Mushroom head" by droplet collision.
I have made a flat plate with adjustable legs to get the bowl/glass/whatever perfectly level when placed on uneven surfaces such as sinks. This ensures an even ripple pattern and reflection from the edges to result in a more symmetrical outcome.
Above all, enjoy, and take lots of shots. You will have fun and get great results, I guarantee it.