Two lights are better, but if you use thee pendants, then position the two stools should be in the middle of the center and end lights.Although they will look very huge. Pictures would help.

My last household purchase was new sliding doors to the outside from my dining room. This then led to the building of a deck, new railing on said deck and existing terrace, new blinds as the old window length curtains no longer did the trick, then the paving stone path to the deck from the garden gate, some new planting to accommodate that, AND outdoor lighting for what has now become an alternative entrance to the house! Oh, and painting as well. So I can liken my last purchase to a bit of a triffid - it kept growing! But SO worth it! It has added another room/space to my house, increased light and warmth, added value and created a more welcoming entrance than before. Love it!

Anyone know where to get these matte black pendant lights from?

Um why ? I'd do a coffee table , and have the light maybe 1 metre or less from the ceiling . The second one I'd just balance the first one , so if the first one is say 2.5 metres from one wall , hang the other 2.5 metres from another wall . The lights are really nice -- you would want them to be seen , rather than highlighting a couch IMO .