Hello, In a few weeks I`m planning to buy my first ever Mac computer, the 27 inch 5k iMac. My main concern is the disc - should I get the HDD or SSD version? I know that the SSD is much faster, but will it actually affect performance apart from faster boot speeds/some apps loading faster etc? And if it does, then how big is the impact? I`m not looking for read/write speeds, I know that the HDD has much lower i/o speeds - I want to know exactly how it will affect my experience with the computer.