What machines did you try? Only pulse Mig's in that range I am aware of are Miller 255 and HTP has the 220 and a larger powered one.
I ordered the PP220 because I primaily wanted to try the Mig synergic / pulse features. It is so-so stick welder and I never intended to Tig weld with it because I have two dedicated AC/DC Tig machines and one DC unit. Also had a Millermatic 250 Mig which I since sold.
I can buy almost three Rogue 190's for what I paid for that HTP 220. Not saying the HTP was a bad machine but I think the pulse is over rated, and unnecessary for the light end of general steel fab work. Probably useful on heavy stuff , out of position but the HTP 220 really doesn't have the power for that.
I hated the program and the user interface, dial to .120" thickness, for example, and 4,5,6? different programs show up. And no doubt all sorts of +- volts, speed, etc. I don't have time for all that nonsense. To me synergic should be a lot easier. I had the HTP side by side with a Miller 211 for a while at a friends race car shop and I ended up choosing the Miller for ease of use and performance every time. I have other thoughts regarding the Miller 211 but I am only comparing performance here.
There is nothing wrong with short circuit Mig on metal thickness 1/4"and under if you know how to use it correctly.
I was glad to see the HTP machine go out the door, it earned me zero dollars.
Personal opinion here, I have over 50 years experience welding all sorts of metal with all sorts of welding processes.
You may have a different experience but I think for auto work the HTP is a waste of money and time. Again, only IMO.