Etherum Scaling Solution zkSync Era malfunctioned last night and block production was halted for 4 hours.

Well, this isn't starting too well. zkSync has been on the mainnet for about a week now and already experienced the first outage... Don't know how to feel about this. Then again, it's still an Alpha. Everyone was hyped about those L2 scaling solutions, yet it is 1. hard and complicated to even get there, 2. the fees are still high compared to other chains making it unfriendly to users and 3. they don't seem to be stable. Also, you have to use bridges which are always a security risk... I am mostly used to other chains so this is pretty new to me but it's pretty underwhelming so far.

What are your opinions on this?

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Edit: Response from zkSync on Twitter