Mine is a GAE rather than a G, which should matter not, but in the interests of full disclosure there you have it. I agree with the advice that the most significant impact will result from cartridge choice. I use an Ortofon Per Windfeld (original) because it pushes all my buttons. Most people would prefer the A-95 for it's greater detail and more up front presentation, but prefer the more distant perspective of the Windfeld. Either sounds very balanced/neutral and I prefer them to the highly regarded Audio Technica A7. Next, very important, the headshell and wire: Yamamoto HS-4S offered a big improvement in detail. Next, I tried Raul's recommended arm wire upgrade, it made for greater detail, but I thought it unnatural (brighter maybe?) and went back to the stock wire. Again, this is subjective. Many (most?) would prefer the arm wire upgrade. Interconnects. I tried a bunch. Settled on AudioSensibility Statement OCC Silver (I also considered their copper version of same). (Note this is not a cheap upgrade) The silver is a little more tingly, whereas the copper is a little warmer. I think if I had gone with the AT cartridge the copper interconnects would have worked better, so the lesson here is that these things are all inter related. Finally mats. I could not say they made a discernible difference to my ear. I have the stock one of course, a deer skin one, a Herbies and a couple of others. All I can tell you is mats are going to have less impact (if any at all) compared to the other tweaks mentioned. A word on alternative arms. The stock arm on my GAE is really superb. It sets up like a dream, in an exactly repeatable manner. I think setup is critical and for people for whom vinyl is a new adventure in particular, this factor of ease of setup cannot be overstated. Too, I change cartridges frequently, mono, MC, MM, trying different ones and like having a removable headshell. I can't say I would consider replacing this arm under any foreseeable circumstance. This is a great turntable and the more I use it the better I like it. These tweaks improve what is a fantastic bargain.