For me, Solana is still good despite what happened to their major backer which is FTX Exchange and Alameda Research.
For me, Solana is still the #2 L1 network after Ethereum, so for me, it's still good because there are still a lot of projects in Solana. Solana is the best alternative for Ethereum when we are talking L1 network only.
For me, it is not good time to buy Solana. I don't say Solana is too bad technically but its blockchain has technical problems that cause their network downtimes past months.
Furthermore the collapse of FTX is still here and consequence of it is still unknown. The full level of consequence from FTX collapse on cryptocurrency market and cryptocurrency entities is still uncertain.
I will wait before this storm goes away to consider buying Solana. Maybe even at higher price than today price because it is safer time to enter in my opinion.