Upgrade SSD or getting a big SD card?

So relatively new deck owner.

Got a deal on a regular Deck for pretty cheap. I didn’t opt for the 1TB SSD or anything like that.

I know that it’s a pretty easy hardware replacement for the SSD or the SD card.

I just have a couple questions:

1. Does the cloning process for the SSD require specialized tools?
2. do you notice a huge performance improvement on SSD compared to SD card?