We had Viper remote start systems for years on our Nissan's (2000, 2003, and 2006) and they worked really well. The only downside I could mention is the cost of the remotes should your get damaged or stop functioning. They were crazy expensive to replace, so we actually ended up abandoning the systems when the remotes failed. That said, they lasted a long time so probably one of the better systems around.I'm having a Viper remote start installed on my new Kona on Saturday. Anyone else have a Viper
Make sure the installer is credible and likely to stay in business, as they will most likely be your source for service in the future (or not as the case maybe with companies that do this type of work).
If you intend to keep the Kona a long time, you might consider buying an extra remote up front, as it might just be cheaper then as opposed to replacing one 7-10 years down the line.