Usage of Kafka Rest Proxy

Our site is very new to Kafka. We received advise not to make use of the Kafka Rest Proxy, but rather to use the Kafka Clients ie Java. WHich is fine, but we sit with lot of legacy systems, where it would be lot easier just to use the KAFKA Rest Proxy.

I’m curious if any of you had bad experiences with the Rest Proxy, and would advise us to stay away from it?
We’re a university, so the traffic is not going to be a match for traffic thru Netflix or other sites.