Hi Aussie Chic
I havnt used the "maybe Baby Brand" but have used a brand called Lady Q. Same thing though. I choose this because it was a lot cheaper than the other ones.
I found the actual process very easy of putting the salvia on and viewing etc. And once youve had a look you can tell the difference between no ferning, ferning, and full ferns. I started early in this cycle just to get into pratice.
The hardest part is that you cant eat or drink before hand. Really hard in this weather! And as Danni confirms, it doesnt work for everyone.

GoodLuck