Ivan responded to my Yelp quote request in less than half an hour and scheduled an appointment for the following day.
At the appointment Ivan gave a courtesy call to let me know he was running a few minutes behind and arrived shortly thereafter. He listened, was very knowledgeable and gave great advice without being pushy.
Five stars so far. Will continue to update as project progresses...
Update: The job is done. Things look nice. I caught one of the workers smoking weed on the side of my house while taking a break. Not ideal, but I didn't tattle. Did a walkthrough with Ivan and mentioned a few balding spots in the rocks where workers had piled dirt that had been dug up from other places. He said he would have a guy come back later and smooth things out. Never heard from anyone after that.
Four stars: the yard looks pretty nice and the price was fair.
2nd Update: I'm getting leaks in the drip system all over my property just under two years since completion. I've fixed three so far and another one just sprang up. I haven't contacted anyone because they weren't that helpful the first time they said they'd fix something. I'm just fixing it myself and hoping it doesn't keep happening.