Nice pics - unlike the Neptune EB832, the outlets on the GHL power bar has the outlets mounted to frame and connected with wires via spade connectors vs soldered directly on the board. That puts less stress on the board when things are plugged/unplugged and cracked solder joints can be a source of failure. On the flip side the space connectors can potentially corrode in a humid, saltwater environment (that would be an easier fix than a broken solder joint, though.) I haven't heard of either of these being significant problems, so I don't think that's an issue.
The Relays are 250V 16A relays, just like in the EB832. Neptune uses Golden relays, GHL's are made by Hongfa - I have no idea which one is better. Either way, they're adequately sized and actual relay failures haven't been an issue with either device.
The second to last photo appears to be a 12 V power supply, likely for driving the relays. The 12V PSU has been a source of failure in the EB832s and Neptune has changed it in the newer versions. GHL's is a different, larger board. I see some Meanwell components which are generally high quality. The capacitors look very similar to the cheap capacitors that tended to fail in the older Neptune boards, but I can't see the brand. It wouldn't make sense to use good Meanwell components and then cheap out on the capacitors, though. The larger board tells me they probably used larger components giving more overhead.
One of the complaints I've seen of the Neptune gear (justified, IMO) is that it isn't conformally coated to protect against corrosion. It's hard to tell, but it doesn't look like the GHL board is either, unfortunately.
Overall, the GHL power bar seems to be well constructed from what I can see. A lot of the transistors have metal caps for heat dissipation and there is plenty of space for airflow around them.
One thing that's really hard to get over is the orange plastic of the EB832 - it just looks cheap. I haven't seen the GHL in person. From the pics it looks like it's plastic, too, but it doesn't look nearly as cheap as the Neptune.