We just finished a 2 year landscapping project of our entire yard and it went very smoothly thanks to the staff at Seville. They are very professional and used to all types of landscapping both commercial and residential. They'll work with your architectural plans or they can help you create your own. They don't hire temporary laborers - every employee is on staff full time. There is always a supervisor on site who speaks english and can answer any question.
We had a very involved project with an outdoor kitchen, fireplace and living space and they were very familiar with this type of work. They always call you back immediately and were very flexible with changes to the plan without incurring significant additional costs. They are not cheap but you get what you pay for and in our case we got a perfect yard.