I find things like these too much of a phaff. I have one that does a similar thing!
My one has a nozzle to locate the seeds but the container is a circular dish with a clear plastic lid that has various sized notches cut in it to suit fine to large seeds.
Where I find it a nuisance is;
a) you have to fill it
b) the seeds seem to have a mind of their and come out more than one at a time.
c) Then you have to empty it again if you do not sow all the seeds as is often the case with me.
If I use it at all I don't use the lid and this makes for speedier sowing, i.e. I find the funneled chute quite usuful now that my hands shake a bit!
Personally I wouldn't buy one, my one came free with a gardening magazine years ago.
I guess it may have its uses, in particular for those people who want to sow their seeds singly!
But when you consider that you might only want a couple of dozen plants of one genus all the phaff is not worth it in my opinion.
Think of this; you still have to prick them out which in effect does the same thing i.e. it singles your plants out!
You asked for opinions ...........this is mine! ;D
