Not the person you asked, but our system was around $20k for about 11 kWh setup for rooftop solar. Since Trump removed personal incentives for ownership we did a Lease to Own which helped shave $6k off the project (basically you "lease" the panels for 6 years then take over ownership).

The only potential longterm downside from my perspective is that while it produces about as much energy we use in a year, we're definitely not energy independent with the setup. We overproduce in the summer and underproduce in the winter, so even with a battery we would still be reliant on the grid. But our electric is typically over $100/month and with our states grid setup, we can basically zero that out.