I registered a ".consulting" domain for my little company when they became available, and it has proved highly problematic ever since. Strangely (or perhaps not) it seems to be the larger players that have the most problems. I would at lest have expected ISPs and comms companies to keep up with this (looking at you, Three)
It was also a bloody nuisance. Spam filters were one thing but there were so many validation forms that failed.
Every reasonable variation of the company name as a .com/.net/.org was taken, including <companyname>company.com
Ugh, what a nightmare.
Domain holders are the landed gentry of tomorrow if we keep this up.
Even then it seems better to come up with a different prefix, or suffix (or both!), just to stay with ‘.com’.
Of course hindsight is 20/20 and I did the same, my personal homepage used to have a ‘.xyz’ address.
That also means that customers WILL confuse your company with others in non-domain contexts so perhaps it's a good idea to choose a more unique company name.