While the resort is nice, we had major issues with our booking. It is primarily a timeshare resort and customers paying for accommodation seem to be their lowest priority. If you are paying it seems you will be the first to be kicked out.
When we arrived to check-in (at 7.30pm on a Saturday evening) we were told there was a problem with our accommodation and we had to be moved to different accommodation. This was nearby at El Marques resort. However the accommodation was of a lower standard that at Ona Las Rosas. After three days of repeatedly asking the Head Receptionist to sort the situation out we were finally moved back to Las Rosas.
They promised to follow-up on my request for a partial refund due to the lower standard of accommodation provided for 3 of our 7 nights, but this has not happened (despite several follow-up emails).
So if you book Las Rosas as a paying customer, prepare to be disappointed. My main issues are:
1) Las Rosas knew there was an issue in advance of our arrival but made no attempt to inform us or Hotels.com (despite us checking-in online several days ahead, as requested)
2) The alternative accommodation offered was lower quality, had not been cleaned properly and was a lower price (as checked on the Ona website), but they did not offer any sort of partial refund of the difference
3) The Reception team promised to follow-up but have simply ignored all emails
If you want a stress-free holiday, book alternative accommodation!