I have a DIY setup running 45 @ 255w Trina panels with Tigo optimizers. I use 3 @ 3.8kw ABB UNO string inverters. I have a ground mount using Ironridge hardware.
I wanted the optimizers due to shading.
I chose the inverters because at the time they were cheaper than micro inverters. Plus I wanted to add a battery bank down the road. Its a little cheaper to swap out the string inverter.
I like the ground mount because I had the space and it was easier as a DIY project.
Only issue so far is during commissioning the inverters were false triggering arc faults on the inverter. ABB sent me and upgrade kit to help and the false trips went away.
Only hard part was giving up extra money to a PE. I am capable of doing it myself, but the permit office wouldn’t accept it without a stamp. Basically they weren’t able to confirm I did it right so they wanted a PE to sign off. Check with the permit office first and you won’t have this surprise.