OK, I blew up the picture and read the specs of the one from Harbor Freight.
Some things I noticed:
Predator engine - Looked it up and it's a proprietary engine made in China. Can you get off-the-shelf parts like you can for a Briggs or Kohler?
Log catch grates - They're not lipped at the ends to keep the log from rolling off. They also don't look very sturdy. The one I have, I can and have literally stood on top of it and it never budged.
It doesn't appear that it can split vertical.
I do like the capability to split in both directions. I don't know if I like the fact it's pushing the wood onto the engine and hoses.
The tongue looks sectional. Could be handy for storage since your tongue doesn't stick out.
Because it can split in both directions, I think it's much faster than a traditional splitter. That's good if you're young but my old body likes that 5-second break you get waiting for the cylinder to return. Heck, I run my just above idle and that's right about the pace I want.
2.5 gal hyd fluid reservoir. That seems pretty small. I think mine is around 6 gallons. Because of the lower volume, you'll need to keep an eye on the fluid temp.