I can't speak to the quality of that forge. Others here will be way more helpful in that regard. I know you didn't ask, but if I may...
Right now- before you buy anything- is when you really ought to make a decision on something. Do you want to be a knifemaker, or do you want to be a blacksmith?
Here's why I ask. You would be way ahead starting with a grinder. EVERY knife will require grinding. A lot of guys have the notion that you forge a knife to completion, and that is not at all true. That is a blacksmith's view of the world, namely that something is done as soon as you hit it with the hammer for the last time. There is absolutely nothing wrong with blacksmithing, but that is not close to what is required to make a finely finished knife. That is how you turn a piece of steel into a knife-shaped object. You then take it and grind it, drill it, grind it, heat treat it, finish grind it, hand sand it, put a handle on it (which you grind), sand the handle....
What you will notice about what I said is that nearly every single step involves grinding and sanding. So, even if you plan to forge every knife you ever make you will do a lot more grinding than pounding.
If you are starting out on a shoestring budget (every single person here did, for what it's worth) and your fascination is with forging, then by all means you can start there. Then you can use files or whatever. I'm just here to warn you that path is a long row to hoe.
I'm sure you've checked out YouTube. Ed Caffrey, a member here, has wonderful instructional videos. Also, a really good source of step-by-step tutorials on YouTube is Walter Sorrells: Tips For The Knifemaker series. Everything from which tools to buy to get started (and what order) to which kinds of steel to try first, and various methods to go about all of it. I can't recommend his videos highly enough.
Most of all, Welcome!