I also recommend an Nespresso Vertuo. Years back we bought an original Nespresso machine and made very good use of it. Late last year we decided to replace it with the newer Vertuo model, as we liked the option for different lengths of coffee built into the machine (eg 230ml), rather than having to boil the kettle as well to make a longer coffee.
There are often some good deals around, so take a look. They’re often on some sort of sale, even if not they’ll regularly do deals like buy the machine and get £40/50 etc gift card which you can use to buy coffee.
We got the VertuoPlus, for a coffee machine it doesn’t take up too much room and you can move the water chamber around to fit your space. It’s currently discounted on Nespresso’s website. They’re easy to maintain, same reasoning as you we went for this for very low fuss, good coffee. We do really like it and stopped buying most coffees out or on the way to work, for instance, as it’s just very easy to make a nice one ourselves.
We did use an Aeroccino for a while but in the end we gave it away as it just wasn’t that great - it works fine, but like others have said actually it’s nice enough just warming some milk in the microwave! We drink coffee black more often than we used too, because the coffee is nice. And yes, we previously had all sorts - cafetière, moka pot, filter drip etc - still think our Nespresso has been the best of them all.
You get a sampler of different capsules with the machine, which helps you work out which ones you really like. We now know which ‘notes’ to go for when trying new blends, but of course you can also taste them in store if you have one you can visit.
I really don’t work for them 
this sounds all a bit lovey for Nespresso, but just sharing our experience!