I'd had my Centurion LeMans RS since 2019, but never really got a bike fit adjustment for it. I thought my issues -- getting tired easily, hand pain at the palms -- were technique and fitness issues, but a few bike fit adjustments made a huge difference!
All we did was raise the seat for full leg extension (I.e. more efficient pedaling), change the stem and handlebar for a more upright, comfortable ride, and add a double layer of grip tape. I've also ordered padded gloves that I hope will help. I'm excited to bike more places!
Sounds cheap to me. I've looked into bike fit around me and it is more like the equivalent of $500 without any parts or anything like that. That's why I did mine myself. Glad you had a good experience though!