After playing a lot of the game boy advanced Pokémon's I can say this one is really playable pretty much the same story line your a young trainer off on an adventure looking for new Pokémon to catch and gain badges along the way with new Pokémon and new poke balls added I find this game really fun and addicting. 
overall:8 overall I give this an 8 which I know is pretty high but Nintendo really did bump up the graphics from the gba predecessor's and with the new Pokémon you'll be wanting to find them and catch them all the game play is a lot  better be it it's touch savvy on the attack basses which is better then switching from menu to menu in my opinion.
graphics: 10 I love the graphics in this game a heck of a lot smother and the game play is kind a slow at times but if your playing it on your computer you gotta figure it's gonna be slow but Nintendo did a really nice job on the graphics department.
sound 8: sounds a lil better here but they still have the same melo keyboard style music that Nintendo has always had though out the ages but he sounds for the Pokémon are better less cheesy and a lot clearer.
addictiveness 9: anyone who loves Pokémon will be addicted to this game all over again there is the original Pokémon and some legadanry ones thrown in ass well to but it is fun that's for sure be on the look out for my hearts gold review I'll let you know to.
story 8: your a Pokémon trainer who sets out on an adventure given to you by professor rowan which is a twist it's not professor oak. With new items added like a poke tech watch that sinks the time with your computer, and a heal ball which heals a Pokémon you caught in the wild it gives a new twist to the much popular story line.
depth 7: like any Pokémon game this is very long with trainers, gyms and wild Pokémon to catch but you'll have for sure finding all the new things.
difficulty 6: I give this a six cause of the depth of the game it's all in how you choose you Pokémon team really you have a lot of ground to cover and challenges around every turn well this is my review see ya in hearts of gold thanks for reading

I like this review, but I think you might want to work on the formatting and organization a bit, and make the review a bit longer. Other than that, the review is good.

nice review, but you may wanna work on it more. also "heartgold" not "hearts of gold". sorry, just cant watch someone mis-say a pokemon game.