While I’ve no direct experience with the Romulus Eclipse my guess from looking at its specs would be that you’ll need to plan on starting with the Atlantic 3 TRP in order to see largely noticeable sonic gains.
I have been using an Aqua La Scala Optologic MKII for the past few years and although I was very happy with its performance I found myself intrigued by the Lampizator- especially when it came to the ability to contour the presentation via tube rolling.
I would say the largest consideration to keep in mind prior to purchasing one is that achieving the highest level of performance and matching within your system may require purchasing and trying many tubes and given today’s prices (and in some cases availability) please be aware of this reality.
I’m more than happy to share my experience with the product so far- you can send a direct message anytime.