Is Lenovo a good phone brand?

I'm thinking of buying a new smartphone, but there are so many brands too choose from. My first choice was Sony but I wanted something different, I've been using Sony phones for more than six years. So I check out other brands, their phones were OK but the price was out of my budget. Then I came across the Lenovo Ideaphone S890. The phone looks beautiful and the android version is up to date and the price is within my budget but I don't know if Lenovo is a good brand.

Which smartphone should I buy?

First, I want a smartphone that's not too costly. I personally want the Galaxy S4 but the price can literally smash my savings. And besides, I'm only 14 years old.

After that realization, I researched on a decent yet less priced phone. I came across this device called Nexus 4. Although the Nexus 4 was low cost and high spec'd, it didn't fit one of my needs. It doesn't have a MicroSD slot, which is a big problem for me because I have a huge collection of MP3 songs, which is 11GB in total and I don't want to waste the 11GB for songs. I can download many apps with 16GB but if I place all my MP3 songs, I only have 5GB. The OS is included in the 5GB so I probably have 2GB left. I would buy this phone for playing HD games and useful apps, but If I only have 2GB left, what's the point of it's high specs?

Recently, I saw this phone called Lenovo IdeaPhone K900. At first, I though it was too large and it was another boring Lenovo smartphone, but when I watched some reviews on youtube and read articles about this phone, I'm impressed. The antutu benchmark got a whooping 25K! After a long research on this phone, I found out that the Antutu app got confused with the phone, thinking that it is a quad core 2Ghz phone, which is a factor in giving benchmark scores. On other benchmark tests it got a lower score than the other flagship smartphones. For example, Quadrant gave it a score of 5-6K, which is behind the S4 and HTC One.

All I want is a phone that can run HD or popular games, Have enough storage capacity (has a MicroSD slot), Decent specs and a full(good in you find one)/true HD screen not less than 4.5 inches but not mroe than 5.5 inches. Of course, it should run on android.

Also, I'm looking for a smartphone that can run Final Fantasy VII Crisis Core through the PPSSPP app. Although my PSP broke 2 years ago, I still have backups on my PC. I don't want to buy another PSP since it's not a "latest" device anymore. I would not buy the PSvita, even though it has a higher specs than a smartphone, because smartphones can do more than play games, watch movies, etc. And besides, I would be the only one using the PSvita in our school.

So which smartphone should I buy?