Operating a US LLC from DXB have numerous advantages, the biggest that comes to mind is the US banking system but also some insidious downsides which are using payment gateways like
Stripe or Paypal that often require some form of US presence otherwise there's a risk of accout closure.
@hireblade89 have you moved to Duabi or think about moving there?
A better solution (with a caveat) would be a
UK LTD treaty non resident in UAE but only to the extent that you can register the UK LTD in freezone otherwise there's no point.
If allowed to register the UK LTD in a freezone you would basically operate at 0% CIT with a UK LTD, have access to all EU
EMI's and UK Stripe and PayPal.
@Fred do you know if this would be possible?