I have been going here for years now. I've given him some of the most ridiculous and random requests. Every single time he has told me he can do it, and the end results are always BETTER than I'm expecting. It's obvious he is at the top of his profession. He's the only tailor I'll go to (I used to live in the area - now I drive 45 mins to get there) and I've given him probably 20 pairs of jeans to hem over the years. From crazy cosplay repairs and alteration requests to asking him to turn a t-shirt into a tank top sized and shaped identical to another tank top that I love. His results are PERFECT. I still have jeans he hemmed like 5 years ago that are in great shape and have zero issues with the stitching.
He's super friendly and I feel like his pricing is great given the quality of his work. Note that he has a super thick accent as English is clearly not his first language, but if you just ask for clarification he's never offended and will likely phrase what he's saying differently. Also of note, he does NOT take credit card. I always have to remind myself to grab cash before picking my stuff up. There's a Walgreens right down the road with an ATM inside though if you forget. I have also noticed that over time he has become much more busy. I would recommend you give him plenty of time to finish your request if it's time sensitive, and call in periodically to remind him and double check that it will be completed on time if you have a deadline to meet. Personally, nothing I've ever taken to him has required a strict deadline so I typically tell him "whenever" when he asks me when I need it, but I've noticed my "whenever" becoming a longer wait over the years. I would, and DO recommend Dublin Tailoring and Alteration to anyone who wants top notch results!