Hello everyone

I'm still looking to settle with a bitcoins client. I downloaded the Bitcoin-QT client and it took forever to load the blocks, whereas Electrum does not need to download the blocks.
Now I'm puzzled what to use. I can understand, that using the bitcoin-qt client to be more reliable and secure because you download the blocks yourself in opposition to Electrum, where you just depend on a global server downloading the blocks for you and providing them on the client.

Is it a bad thing to use Electrum?

Greetings Gonzos