I'm a bit behind on the current crop of Phono Stages, but if you want some additional background info, PM me and I'll send along my compiled phono stage comparison doc. It's a few years old, but covers much of what's in the used market.
I have done this sort of thing quit a bit. For years I lived with the totally refurbished phono stage in a Pioneer SA-8800 Integrated Amp. I went there becasue I realized long ago that many cartridges require other loading than the std 47K and 200pF that comes in many stages ... the SA-8800 had a fully adjustable phono stage.
From there I wandered off to external stages including the ART where we did a shoot-out between all the low cost phono stages with real needle drops on a range of music and group A-B-C evaluated for dynamics and detail, etc.
Bottom line is that for $40, the ART is hard to beat. Sure it can be beat, but the cost is likely to be a few hundred. It has good bottom and middle ranges. OK top end with some detail missing. The TCC-750 is in about the same boat and not as "engaging" to me.
I finally dropped the coin on a used Musical Surroundings Phonomena and have never looked back. It came down to auditory resolution. Details in the music that are just not there with lesser equipment. But that can be a hard budget nut to swallow.
Having been in and around the music industry since the 1970's I have seen and heard a lot. Every enthusiast has their own preferences for what a system is supposed to sound like. I know what I like and I could live with an ART if I had no other choice. It will work up to the AT 440/Mla level. It will not be happy with Shures. It's OK with Ortofons and ADC's and the like. Not to good with Grado.
So look down the road and figure out if you'll be running more than one cartridge? I have a cartridge/stylus library of some 40 odd divided between two TT's. All mounted and ready to go. I swap as needed to get what is on the record to sound as I think it should. If you see that in the future, you need an adjustable stage ...