Spa tech or Flex tech tubing

[Quinster]

Anyone use either of these lines of tubing for their send/return lines to their sump?
The actual name on the hose is
ARROW HOSE & TUBING INC. ARROW-FLO Hg TYPE 9P ID POOL & SPA HOSE
I thought it would give less restrictions due to the fact you could greatly reduce the need for elbows over the use of rigid pipe.

Any Opinions?
Quinn