I am fortunate to have a local Microsoft Store also. I have used them a couple of times when I get stuck (which isn't very often) and they have been very good to me.
Example 1: I bought my Lumia 810 from the MS Store and was having issues with reading various microSD cards. The first thing they did was just exchange the 810. We experimented with the microSD cards that I brought, to determine that it wasn't the phone, but the various quality of said cards. The tech even went over to the shelf and pulled down a brand new Kingston microSD for testing (which worked perfectly). After he offered to sell me the card for 50% off, because "it's an open/returned product now." (I should have taken the offer, but was short on funds at the time).
Example 2: People love giving me their old computer stuff for free tech support. I got a completely dead ASUS Ultra book from someone that had bought it from the Microsoft Store. It was way out of warranty, and they didn't want to deal with shipping, time without it, etc. So since they already bought a replacement, and I had helped them in the past, I got the dead computer.
Turns out the Ultrabook had gotten to hot and didn't do a thermal shutdown (bad bios version). With some tinkering around I got it to come back to life, except for the SSD. I searched and searched online for a replacement (non standard SSD), but either came back as out of stock, or crazy expensive.
The original owner left the receipt from MS in the box. On a whim I took the Ultrabook up to the MS store and explained the entire story and asked what they could do. They said they would take a look at it and call if they could find a replacement SSD. Two days later, they called saying they could get a new SSD and the price was over 4 times cheaper than what I was able to find online (MS SSD $225, everywhere else at the time $800-$900). Of course I said YES (I actually had some extra $ at the time, WoooHooo!!!). Two days later they called and said I could pick up the Ultrabook. They didn't charge labor, and they even installed a valid copy of Windows 7 for me.
Example 3: I got my Surface RT from someone that had moved up to the PRO when it came out (I had done a lot of support for them in getting them used to W8 and they were grateful). Way out of warranty, not purchased from MS but BestBuy, I dropped and cracked the screen. It was so bad that even trying override the cursor control with the trackpad didn't work. They tried to do the prorated warranty, but the system didn't allow it. I looked around on how I could get the parts and try to do the screen replacement myself. Decided it was out of my league, skill set, to do so. Got a quote from MS for them to repair. Saved up for it.
Just happened a friend was visiting that just gotten the Surface 2, and wanted to go the MS store and take their free W8 class. I decided to go with and take my Surface and see if they would ship it for me (thinking, if they have others to ship, they might include this one on a bulk discount). Sure enough they said "Yea, good idea! We have a shipment going out tonight and we'll include this one." Filled out the repair order, and such and waited for my friend to finish her class.
A week later the Surface RT comes back. Not repaired, but REPLACED. I won't even say what they charged me, but let's just say "THEY WERE VERY, VERY, NICE TO ME!!"
After all of this, I am perfectly willing to save longer, for more money, so I can buy my stuff from the Microsoft store.