'The Best' means different things to different people, and is more often a claim way over-used. When I say Eugene is a top men's tailor - not just in Philadelphia, but to rival NYC, London, S'pore - I mean in terms of
1) Craftsmanship: They're beyond nice stitching on lapels, good construction at the shoulders. We're talking another level. My first suit order was a 3 piece in plaid. Not only did stripes completely match on the jacket itself (at the lapel seam, the back collar, sleeve to torso, the pockets), but also from jacket to vest to pants - front and back! Like one seamless work of art. No other tailor, including the reputable names in NYC, were willing to guarantee this for me. Gene did, and he delivered.
2) Good business. All work done in-house, producing unmatched quality and coordination. This is in direct contrast to almost all other tailors today, who outsource and act as just a store front. Fewer hands making the different parts of the suit, the better; preferably just the left and right together, if you think about it. =) That's why only Gene could produce that matching plaid suit for me. They're one of the last to keep the traditional business model going, and their distinct results show it. Kudos for that.
3) Accountability and Timeliness: I know exactly where my suit and material are located. No shell game of different locations, the worst being overseas, and shops going bust. They keep to their delivery date, which I think is a good part due to their production being in-house.
4) Professionalism: I really feel their passion in what they do, and how they strive to be the best. They seem to enjoy challenging projects, to showcase their talent.
As for price, you get what you pay for. I can say they work hard and diligent for the money: meticulous initial measurements, including sketching of the suit. Three fittings total for my plaid suit, just to get all the stripes to match.