I think it depends on what connection rates they support on the plugs. I haven't used them and like you, i'm a hard wired LAN guy so I tend to avoid using any PL products. I'd review the connection rates supported on the LAN plugs, hot sure if they support Gb or 100Mb only. I some cases I think they would work well.
Can't get someone to run you a CAT6 cable inside the wall some how? It probably can be done.
I'd phone contact D-Link and ask questions about these before you buy.