I know someone who drilled out the wick on an RSST and apparently the metal is some cheap gold colored alloy (not even brass). I would not have one of these in my stable personally. I would take a real (uninsulated) AC9 any day over one of those. In most cases, you get what you pay for. The AGA would one of the few exceptions to that rule for me. Great bang for the buck.
I have two RSST and three AGA-T2. The RSST is solid stainless including the post. Not a bat atty at all. I like it better than the AGA-T2 but the seal needs a little modding as it leaks the slightest bit to the connector. A silicone insulator from the AGA does the job.