ekinci palace has reviews here
http://www.holidaytruths.co.uk/reviews/turkey/dalaman-region/marmaris/ekinci-palace-apartments/
I have used onur air and they are basic with no flight meals but good value
transfers are easy, decide if you want a private transfer cost slighty more, but more comfort and quicker.
cheaper opition is to book a shuttle/minibus or coach many to choose from.
If you find apart/hotel you wish to stay at or would like a price ask on this forum for direct contact details and someone will most likely have it. try avoiding booking with travel agents and paying commission to them. most direct bookings you tend not to pay for your rooms intill you arrive not like a travel agent were you pay up front.
always search here for information you can get here for free on how to beat agents