It'll work fine, and you're best off not eating up precious public IPv4 addresses for this kind of thing anyway (I assume since you are using a /30 that it is purely an interconnect network between two layer 3 network devices.
One way to think about it is that it's just a means for the two devices on either end of your 192.168.1.0/30 segment to have a common LAN segment to exchange traffic across (one being the next hop of the other's routes, and vice versa). So long as they can communicate together (and aren't actually hosting any resources themselves), it doesn't matter to the outside world what IPs they use.
You'll just have to keep in mind that the relevant interfaces won't be directly monitorable from the internet, which can be a plus or a minus depending on what exactly you are trying to do.