Pretty late to this discussion but I purchased the Maestra new from a reseller, and within 3-4 months of use commuting to work 3 days/week, the interior flap began to pill and the straps started to wear although I don't regularly transport my laptop or anything heavy. All I carry to work are my hardcover book, house and car keys, wallet, phone, and a small cosmetic bag. I am easy on bags and have a number of mid-tier and luxury bags for years without the level of wear and tear of this one.
When I reached out to Senreve to request repair options they told me I was beyond the warranty period and there was nothing they could do, although it was a new bag. The fact that the company doesn't stand behind their products is maddening. I truly don't get the hype behind the brand, and the quality certainly isn't worth the cost. Also, while beautiful to look at, the Maestra simply isn't a comfortable bag to wear.