IMO go OEM and make dealership install it. I am not saying one is better or anything but remote start is one of those things that is notorious for not working right or getting blamed for other issues. I think it is worth it to have a dealer do it just for liability, you do not want that and worth the install charge if you ask me.
The range is great on these. Surprisingly great IMO, you can also hold the key under your chin and open your mouth for extra range. I have got a good block if not more out of my FOB.