GS1900-24 webGUI: bugs? Missing functions?

My GS1900-24 is running fine, even now with the VLANs: stable and fast. The only problem was getting there: I found the web gui somewhat buggy:

- it only runs in the browser's  incognito mode (in normal mode it is gone immediately after login)
- if I accidentally "touch" the dropdown button at the top of the list, it resets all ports to that value, even if I just configured the whole list 
- sometimes by just switching between screens (VLAN to Monitor for instance) it just logs out without any apparent reason
- the backup and restore screens work but it is not clear how to use them (but then again, it is not too hard to figure that out)
- overall, and quite contrary to the device itself, the gui feels buggy, laggy and instable

Is it only me, or do more people experience this?

Furthermore, the experience could be so much richer. Why not provide the ability to set color codes for VLANs and make those visible in the various screens, most important in the "Getting started" screen? It could provide you with an immediate insight in how the VLANs are configured, at least for the untagged ports. I also miss the opportunity to document my ports and VLANs, just adding some "description" fields here and there could be helpful. Just like pfSense does it, for instance. 
I am not a network professional and am just learning VLANs and stuff. I have no idea how other brands do this (if they offer this at all) and if this is just a plain stupid idea or not even possible. But for me, being a home user, a hobbyist, I feel like it could be very useful. How do other people look at that?