It should work, it works for me.
A few hints: first configure the router ... after everything works for wired clients and 2.4GHz clients (if that's the band to be used for AP), proceed with configuration of "wifi bridge" on 5GHz (if that's the band to be used for PtP connection). Wireless mode should be set to "bridge" and set wireless protocol to "nstreme" (or whichever you chose). I recommend to have dedicated security profile and SSID different than on "normal" AP. When wlan2 (the wifi PtP) interface seems to be configured, add it to bridge with other LAN ports (wired and wifi).
For the unit that is going to be extender set wireless mode on 5GHz interface to "station bridge" and wireless protocol to "nv2 nstreme 802.11"... this way, if you decide to go with another protocol, you change it on "master" device and the extender will follow. The same goes with frequency: you might want to set it on master unit, but leave it set to "auto" on extender. Disable DHCP server on extender, clients should be able to get their assignments from master unit.
Be sure that security profiles and other settings (e.g. SSID, channel width ...) on both units match.
If everything goes fine, extender could fetch its own IP address using DHCP client. However I advise to configure static IP so that management access to extender (via ts wireless or wired ports) works even if PtP connection doesn't work.