I just used this service for the first time; no problems. My only issue was communication: after the initial notice that my order had been received, then another that said it had been assigned, there was a supposed link in the email where I was supposed to be able to track the progress of my order, but it didn't lead anywhere. "No tracking number has been assigned yet" and there never was. There was also nowhere on the website itself that looked like I could check on my order. I was starting to get nervous, especially after 2 hours passed (the estimated time for my appointment), since I was limited for time. But a little later I got a text that my battery was about 20 minutes away and, sure enough, help arrived. It was pretty fast service and met my needs. The only reason I didn't give 5 stars was the lack of access to Updates, even though there was supposed to be. I did get a couple phone calls just before the arrival; I didn't answer only because my cell service labeled them "Likely Spam".