I also had a really good experience with Dr Abdullah in Zahra Hospital Sharjah.
I got ITA 2 days ago and was researching different options. For a family of 5 (Including 3 infants), it would have cost me the following
Abu Dhabi 2950 (800 per adult, 450 per infant)
Dubai 2425 (795 per adult, 250 per infant)
Sharjah 2340 (725 per adult, 325 per infant)
Even though I'm from Abu Dhabi, I preferred going all the way to Sharjah to do the medical for the following reasons.
1) Abu Dhabi is way more expensive than other options.
2) Abu Dhabi and Dubai require relatively more notice for booking appointments. Also, both of them were closed for two weeks for Eid holidays so they were not available for next two weeks any way.
3) Sharjah came highly recommended on this forum. Price is competitive for UAE.
I had a very similar experience to other forum members. They close at 4 PM in Ramadan. I called them and they said arrive by 2 PM. They also confirmed that it doesn't matter if we're fasting as none of the tests will be affected by the fasting. However, due to traffic, we reached at 3 PM. I was expecting them to refuse us but still made the walk to Building A 6th floor reception. Luckily, the staff accepted us. The entire process for 5 persons was over within one hour and we received the e-Medical forms for uploading in the system right there on the spot. Dr Abdullah was very courteous in face of our noisy toddlers. I thanked him for accepting us and being polite during our appointment. Thanks to this facility, I was able to complete this important task now rather than 2 weeks from now.