I don't doubt it's good oil. However, one has to look at what one needs versus the costs. Eneos oil tends to be SN/GF-5 without a bunch of European specifications. So, it really doesn't offer better certifications than Pennzoil Platinum, vanilla Syntec or M1, or Valvoline synthetic. So, if it's priced similarly, great.
Where Eneos shines is their drivetrain fluids, since they make a lot of tranny fluids and so forth for Japanese cars that may not be readily available from other companies.