For what it's worth I've been comparing the PL-330 to the ZHS-757 and HRD-757 (Identical radios made by in China by Hanrongda). For simplifying purposes I will refer to my comparisons as 330 and 757. The 757 boasts additional band coverage of air, vhf, uhf and weather. I can tell you now, the vhf and uhf reception on the 757 has been horrible using a Tram 1094 mobile scanner antenna (with an adapter for the ext antenna plug) that I use for my scanner. The antenna works well on my Uniden scanner. Anyway, back to the 330. Great! I'm located at the east coast of the US, and I've received stations from New Zealand, China, Mongolia, Romania, France, the Vatican, Spain, Brazil, Cuba & various transmission stations from the east coast of Africa. Also numerous broadcasts from within the states. Not much in the way of hams or ssb though. My antenna? Believe it or not, the same tram 1094 that I use on my scanner for wideband vhf & uhf reception (with a bnc female to 3.5mm male plug to fit the external antenna) . I don't know if it's the antenna itself or the coax that boosts my reception, but I can say I tried an Xhdata AN80 reel type sw antenna and also a circular "donut" ring antenna, both dedicated sw antennas, which showed no improvement from the attached telescopic antenna. I highly recommend the PL-330. As for the two 757s? The reception wasn't bad on shortwave. I received a lot of the same stations as on the 330, but definitely not as many and not as strong. But the worst part of the 757, is terrible bleed over of a strong AM band local station that can be heard in the background of a lot of the shortwave transmissions. The PL-330 has almost zero interference from this strong AM station. My conclusion, the 757 is not worth it. Vhf, air and uhf reception is horrible, though weather station reception is capable, as is AM and FM. Shortwave is fairly good, but for the heavy bleed over of the strong AM station. The PL-330 is superior for shortwave listening. I have a Qodosen DX286 on the way to compare it to, but haven't received it yet.