I've had lots of different buttons over the years. Most feel fine. If you aren't using it in a bar, I'm sure they'll be fine. They should be pretty easily replaceable if you hate them. You'll just be down a few $$.
That said, I would personally go with Happ + iPac. And because I'm lazy, I would get the iPac from ultimarc along with the buttons Andy sells so I could get them all from the same place. I'm not a huge fan of the easy get style of button. Where wiring is concerned, if you have the right tools, it's dead simple with an iPac.
A decent set of wire strippers is critical. If you don't want to get one of those, then I'd go with the other set. If you get the wirestrippers, you just strip both ends. The iPac side screws down with a small flathead. The other side attach those
spade connectors which you can crimp on with your new wire strippers, and then plug straight into the buttons.
Using the Happ/Ipac, you won't have LED buttons, but eh.
