Have Estilo LXI since 2010 and completed 5.5 years on it with 55000 KMs. No major issues as of now. Being Maruti it is serviced at affordable prices and network is amazing even in many remote areas. Good to cruise on highways but has issues in city with the AC on.
You need to keep on changing gears very often. Any speed below 20KMPH and you need to change to 2nd or 1st gear to move on. May be true for all new aluminium engine cars. Yeah, but being maruti it is great to own this one. It is no longer available from Maruti but overall a good car to have.