I love HF, but I would not suggest their squares, levels, or straight edges to anyone. You might find a decent one in the batch, but a common Empire or Johnson would be a much safer bet is your not looking to spend to much money.
Can't disagree but I happened to be near the store and stopped in during one of their many sales. The 48" levels were priced way too good to pass up so I compared level to level and straight edge to level, all their
products, and found this batch to be very good for straight edges (holding up to the light 'cause that's all I could go by). And I probably spent 20 minutes taking things off the rack, holding them up to the light, and putting them back before I picked one to take home.
But I would not under any circumstance just go by and pick one off the rack thinking it was very close. I got lucky, I guess, because using it against my 24" Starrett in any given section that size on the HF level it is no more than 0.001" out.
My PM66 shows 0.002" dip in the center when I test with my Starrett in line corner to corner. The HF level, which actually reaches corner to corner, shows 0.003" dip in the center. That's probably more accurate given the distance and close enough for most woodworking we all do.