I've had a HF 4x6" metal (green) bandsaw for nearly 7 years now. It is probably one of my favorite tools and has been utterly reliable. I use it exclusively in the upright position for cutting blade profiles. I bought a new 4x6 for the garage and tried to use in the horizontal mode to cut pipe, bar stock, etc. This one (red) absolutely sucks. I have broken 2 blades in 24 hours. I can't recall breaking 2 blades on the other one. I have adjusted every thing that can be adjusted on this new one. The tracking is terrible and routinely pops off the blade. Even the bolts are so soft they strip easily. For the last few years I have seen postings by newbies about their 4x6" not cutting right or tracking or other issues. I understand what they are going through now. I used to tell noobs all the time to get the cheap 4x6", I won't be any more.
I
think I'm going with this one from Grizzly.