I have to agree to a point; if I can't get more than 15-20 wears from a bespoke shirt I'm not going to go further along this path. The bulk of my shirts are MTM Truzzi and Mastai Ferretti and I've washed these I don't know how many times. They hold up very well although a few could use a change of cuffs and collar (I understand this can be done by sending them back to the factory but I have not tried this service). We'll see how the NSM bespoke shirts do after a dozen washes on the "hand wash" program.
Thanks for all your input guys, sorry for derailing this thread into a shirt washing discussion.
I have bespoke, hand finished shirt, that are up to 5 years old and with no signs of frying or permanent stains, and have been mostly machine washed on delicate cycles with the pre-treating mentioned above. Responses from some members above about shirts being disposable and not caring for them IMHO are not applicable as response to the original question, which was about bespoke/hand finished shirts from this firm specifically, which would cost in the region of 150-300 euro I guess, and cannot be compared to 10 dollar a piece underwear, come on. Indeed you are free to buy disposable shirts and having them altered, but unless you do a complete re-cut at considerable expense, the larger armscye will not compliment your bespoke jackets as the narrow jacket armhole will pull the shirt sleeve up, causing some level of discomfort and obviously affecting the desired length of the shirt sleeve. So, if you spend money on bespoke clothing, then you need to invest (and take care) in bespoke shirts.
Take the due care, which as already explained is not overbearing compared to the money and time spent to take them to a commercial laundry, but just a different and better way to take care of your valuable clothing.