As far as overall league quality is concerned, I'd say it's probably a step up (although I defer to Sam for final verdict here). Some of the better Ukrainian sides compete in the third-tier European international club competition (EuroChallenge), there will usually be at least one Ukrainian team that gets a chance to qualify for the second-tier competition (EuroCup), and the top team, CB Donetsk, is guaranteed EuroCup qualification and has a chance (a slim chance, but a chance) to qualify for the next EuroLeague, which is the top competition. You'll never see a Hungarian team in EuroLeague, you're unlikely to see one in EuroCup, and right now none are even assured qualification for EuroChallenge - there are two Hungarian teams eligible, but they don't have guaranteed berths.
With respect to El-Amin's career, though, it's a bit murkier. The team he signed with has at least one recent instance of non-payment of salary/expenses to an American player, which had to be
resolved by FIBA arbitration. Then again, his old club
had a similar issue with non-payment to players on it's women's team, and in that case the sums were substantially larger.
PVSK Pannonpower finished mid-table in the Hungarian league (14-12 record). Politekhnika-Halychyna finished farther down in the Ukrainian league - not in a relegation zone, but nowhere near .500 (17-31). Often it's better (to a point) to be on a top team in a weaker league than on a struggling team in a stronger league, but I don't think this falls under that category because PVSK aren't any great shakes in Hungary.
Bottom line is I think there are too many variables to say something definitive without knowing more about El-Amin's exact situation - what he's being paid, what's the financial situation of his club, what's going on with player movement for his club and other Ukrainian clubs, etc. - but this is probably a small step up, all things considered.
