As they say – people don’t use Oracle because the IT department chose it :). This is also probably true for for their cloud offering :). Just of the top of my head:

• Arcane login procedure
  • that doesn’t support 2FA
  • that prompts you to change your (randomly generated, high entry, kept in a password manager) password, even though the NIST has recommended against this practice for many years
  • which fails to actually log you out (!) – discovered this when I was trying to verify that my updated password worked
• Machine console sometimes work and sometimes doesn’t
• Arcane procedure to attach disks to VMs (to be fair: they show the commands in a popup window)
  • And even with these commands one can’t switch the boot disk of a given VM

They have a generous amount of free credit, but I wouldn’t recommend them for production use.