Starting from the top.

Packaging - Great, came with a sheet of example tricks to do and was packed nicely.

The fit - The fit was snug. Considering it's not a full size TT, i was a bit skeptical as to how well it would sit on the thumb, but it turned out to be ok, but not the best.

Economy of motion - Average. The lead comes glued in a holder that runs through both sides of the TT. As your thumb moves to write the name / prediction etc, the gimmick moves the TT around, reducing the quality of your writing.

The lead - Horrible. It just doesn't write... I mean ideally you want to be using a business card for your prediction effects so your spectators remember you by that trick. However the thicker stock of business cards makes the lead almost not work at all (Wish i could upload a picture to show you what i mean)It BARELY works on normal paper that you get from a printer or just lying around on your desk. Also , the lead comes BLUNT, not a POINT, which makes the writing look dull.

I only bought this type of gimmick because it was the only one I found on Penguin.

WOULD NOT recommend or use the device to anyone, sorry but it's true.

The swami writer is a very useful and versatile gimmick to create mentalism effects. I have found this particular model to be easier to handle than others. It is still not easy to write with this but I think it is more stable and it won't get lost in your pocket.

This product was good at first because it would stick good on my fingers. But as time went on the stickiness went away and a product became very difficult to use. So overall it was good at first but after time it becomes very difficult to use. Would recommend it if you want a product that is very good for a couple uses