SOtM Streamer Advice

I do not have experience with the SOtM gear, but I think that you will like the improvements that a better server will bring. Typically you will get a cleaner sound with a lower noise floor, primarily due to better clocking and reduced EMI in the server. This will not result in a more clinical sound, but you will hear more of the music. 

If you upgrade and find the sound too detailed or clinical, then I would look elsewhere for the source, with your DAC being the likely suspect since you like your system already for vinyl. 

I have had a number of digital 'aha' moments that caught me by surprise. (e.g. USB cables matter, somehow) I say go for it. 

@zlone correct. A better streamer should lower noise floor which improves resolution, transparency. Streamers don't color the sound or change tonality, a lower noise floor may uncover gremlins elsewhere in system. I always advocate going for best streamer one can afford, fearing it may uncover some defect in system isn't a good excuse for not going for it. Thing is the defect is already there, providing more resolution provides an opportunity to hear those defects and attend to them. 

In my experience streamers can sound very different.  I have both an Ian Canada I2S rig and a Mercury V3, both based on the RPi and both running the same software, but with different build philosphies. I like them both but they sound completely different into my Chord Qutest.  I think the OP would be wise to hold off on his purchase.  He might want to go over to Audiophilestyle and ask about it there.  There’s a whole forum devoted to streaming and entire threads about SOtM gear.  People are pretty honest there in a pleasant way and he’ll probably get some good feedback.

Thanks for your input all.

Forgot to mention I ran SOTM SMS200 Neo some years ago, this as Roon Endpoint. Moved to Sonore OpticalRendu for Endpoint, optical conversion worthwhile improvement for me.