Bought an old (2011 MC815LL/A) mac mini and I've never owned a mac. I have some questions...

Hello everyone, thank you for stopping by to help me out! Before I get ahead of myself let me explain the situation and the technical specs of the mac mini I bought. For starters, I bought a refurbished Mac mini because a friend of mine wants an iOs app to go with his web app. I've never owned a mac before, but I did work on one for a year using Xcode and Objective-C. I know that there have been a lot of changes to iOs app development in the four or so years since then. But because of this and because I don't own a mac, I wanted to pick up a cheap one. What I bought was:

Basic specs for my 2011 MC815LL/A:

Manufacturer: APPLE

Brand/Model: MAC MINI (M11)

Processor: CORE I5 2.3GHZ

Memory: 16GB-RAM

Hard Drive: 500GB-HDD

Optical Drive:

Form Factor: ULTRA SMALL

I specifically wanted the 16GB of RAM because I know eight would be right around the limit and for an older pc I figured I'd want the extra memory for debugging and simulating iOs devices. I know that my mini can be upgraded to High Sierra, and hopefully that all goes smoothly, but what are your thoughts on running xCode and developing on this particular mini? I'm expecting it to be slower than my PC workstation, maybe about as powerful as a 2012 Acer laptop I run Debian on. But do you think I may run into issues trying to develop on this? Or I should say, any problems developing for iOs on this machine? Because no matter what I can always set it up as a small server for side projects of mine.