I have maybe seven or eight of them. All the sizes. But I think size #3 is the best all round.
I used up the ink cartridge, and got a syringe to fill with it with Noodlers inks on all of them.

The down side of these pens is the cheap plastic they are made with. The cap will split and break just by using the pen a lot over time. So, to stop this; when I get a new one, I take a piece of scotch tape and put a neat little wrap of it all the way around the outside edge of the cap where it snaps on. The tape comes right up to the edge but does not go over the whole.
This stops them from breaking, and you don't really notice the clear tape at all unless you got sloppy.

I used to work at a kennel. There were information sheets on each dog's cage, & some of the cages were near the ground. Having a shamefully tiny breast pocket, this thing fell out *all the damn time*. Many dogs so we're talking like 10-15 times a night sometimes. After months of work AKA months of abuse, it's working the same as it did on day one.

All the Platinum Preppy Fountain pens were above my expectations. I use them for drawing and just writing notes to people. So, so easy to handle. I'm a lefty and this feels so right in my hand.

Use with the carbon ink cartridges by Platinum for drawing and sketching. Flawless and smooth.

A great fountain pen at an affordable price. If you are looking for a good starter pen, or if you are not interested in buying something too fancy, then this is a great choice. I used mine for well over a year before deciding to replace it. It is definitely a good value.