In reality probably not much I have heard a lot of good things about the harbor freight grinder and I have heard a lot of good things about the Chinese copy of the Oregon grinder you can buy on Amazon for around a 100 bucks
Only one adjustment for cutter angle, inaccurate from left to right without modification, only one size wheel available from harbor freight, all plastic and flexible. I got it for $10 used. You couldn't give me another. I preferred hand filing with my Stihl 2-1 sharpeners. Much better results. I'm picking up a lightly used Tecomec super jolly Saturday.
Yeah, I've never had a problem with needing more than one adjustment for cutter angle or lack of left to right accuracy or the one wheel size. The flex is actually something I use to my advantage so that's fine too. I would hope that spending 3-10x as much on a grinder will give some people some improvements but we'll all still get the wood cut. Maybe the professional sharpeners that do this for a living see some benefit.
The other issue I had with the Harbor freight grinder is the inconsistent clamping of the chain holder.
You're welcome bud. The clamping thing was irritating. It would change the tooth position from cutter to cutter if you didn't pay attention.
I'll be curious to see if the Super Jolly rocks your cutters a bit. Mine does, but I've got a good system that alleviates it. Just something to keep an eye on when ya get it.
Yeah, it does have a little play, but I use it to my advantage a bit. Mine, you have to try to make it move side to side. It's not a sloppy type of play, if that makes sense.
I don't use the clamp on mine. I just use my left hand to pull and hold the chain against the stop. Ignorance is bliss in my situation I guess haha. Like I say...I'm a hobbyist at best so I definitely don't know more than the bare minimum and I'm always willing to learn. Like someone else said (which may have been in jest) I actually do use the flex of the harbor freight head. I set it a little tight and flex it to the right to get the bottom of the tooth and let it come back into the cutter as I bring it out.