Why should I use GetSimple? (looking for answers)

[TDT-Alpha]

Hi all!
I'm looking for the best and light-weighted CMS for 2 websites of mine.
Now, I have no real server but a free one web hosting space account.
With that server I cannot run Wordpress, CMS Made Simple, Drupal and more because these are being super slow (long load times).
Now, I already used GetSimple before, but the weird thing is that one day - the perfect website of mine, just lost its design, I mean it lost its shape completely - it was a mess and I could not remake it.
Now my websites are: (I mean the ones I'm looking to make)
TDT - A design gallery, news blog and general info (also vid gallery)
PRCO - A news blog and a concept art gallery
NB - A virtual dynamic notebook for all my non-virtual design (on paper... in other words)

Why should I use GetSimple? Should I use another CMS? (get real with me, I'm almost desperate)
If I SHOULD use GetSimple, can you guide me through the creation by suggesting plugins and modifications (by the needs of each website..) ??

Thanks in advance,
TDT-Alpha (TheDragonTeam).