The game is very difficult and very fun, it is really well made with really great Pokémon.
The only thing I do not like about this game is that we have Match Call instead of VS Seeker, there was a point where I was at the fire gym and I had to use macho brace to level up a few more levels above 55ish to be able to 1v2 her Pokémon. My other Pokémon were level 20ish and got one shot by her Pokémon, VS Seeker would be better in this type of difficulty than Match Call because with Match Call there is no certainty that you will be able to battle someone and gain exp to level up your other Pokémon, but with VS Seeker it will make it easier to level your Pokémon by just running around recharging it and battling whoever your near. I know easy it isn't good for this difficulty but it beats people just rage quitting or losing all their cash by battling the same trainer/gym leader who wipes their Pokémon and only being able to kill 1 or two Pokémon while gaining little exp. 

There are two reasons I can think of that the VS seeker isn't in the game. First and foremost comes from the fact this is supposed to be the "expert" version of the game. The point wasn't to make things easier for you, but to make it harder. The second reason comes from the fact this is a hack of Emerald and not Fire Red or Leaf Green. The person doing the hacking would have to find a way to bring over the coding without messing up the Emerald coding. If ever added it won't be to make the game easier, but instead speed up the game for people more then anything.
 

poke-fan-1900 : I said that>>, but its better than people simply quitting the game when its impossible to get by parts of the hack, if not that then add more trainers or something