Since this thread is seeing a little more activity lately, I decided to do a copy and paste of my Karmel Shuttle review from a January 2020 trip originally posted a few pages back. Hope it helps:
This is mainly for my fellow Super Shuttle peeps that are now wondering what to do transportation-wise.
Just wanted to come back and update with my Karmel experience his week. Getaway Today has a voucher for Karmel, and that helped me decide to go with this shuttle service -- that, and some positive reviews in this thread. I have had good experiences with GAT and figured they wouldn't be associated with Karmel if things were as bad as the general reviews proclaim.
I didn't actually use the voucher from GAT, since the price difference was only pennies. I decided it was best to just work directly with Karmel for my first time.
I made a reservation online for just myself (1 seat in a 9 passenger shared van for $30 + tip) to be picked up from LGB on Wednesday morning. One difference between SS and Karmel: Karmel tells you to collect your luggage AND THEN let them know you are ready to be picked up, as opposed to just showing up at a predetermined time. The day before my flight I received a text, confirming my reservation. When my plane landed I received a text welcoming me to Long Beach, with a "Ready to Go" link to click once I had picked up my luggage. I clicked the link after grabbing my bag and I received a response telling me the number of the vehicle that had been dispatched, and directing me to go to the island curb in the middle and wait for my driver. Three minutes later I received a call from the driver, asking where I was standing. I looked up and saw the shuttle pulling up right in front of the airport rather than in the island area, so I crossed back over and hopped in. (LGB is very small, and all ground transportation is right there in front of the outdoor baggage claim so there is really no question as to where you should be standing.)
I had a very friendly driver (who was playing an 80s station, which was getting me all geared up for 80s Nite...the whole reason I was there

). I was the only passenger. He dropped me off at Best Western Park Place Inn and Suites. It was 50 minutes between the time I was picked up and the time I sneaked up behind my sister at Jolly Holiday and surprised her.
My sister had a different experience. She flew into SNA. She received a text the day before confirming her shuttle reservation ($19 + tip one way). She landed, and received no text from Karmel as stated would be the case in the original confirmation email, so she texted the company as directed in the email. Ten minutes later and still no text response back. She called (as email directed) and asked where they were. They told her they hadn't received a text from her. She explained that was because she hadn't received the "Ready to Go" link (as I did) - so of course they hadn't received a text from her. She ended up waiting 20 minutes for a driver. A couple in their 70s was booked with Karmel and they also had issues. My sister saw/heard the driver yelling. She wasn't sure if he was yelling at the couple, or someone else (he had an earpiece). When the couple got in the shuttle she asked if he had been yelling at them. He hadn't - he was yelling at whoever else he was communicating with, which appeared to be a coworker. My sister's experience left a bad taste in her mouth. (She is also a former Super Shuttle user.)
We both flew out of LGB the next day so I reserved a return trip for 2 on a 9 passenger shared van. Total was $60 + tip for the 2 of us. Our pick up time was 3:30pm, but we were directed to be waiting outside of the hotel lobby 15 minutes early. The shuttle arrived at 3:20. The driver had one more passenger to pick up right next door at Tropicana, but her pick up time wasn't until 3:50pm. The driver called her to see if she was ready. Fortunately she was at the crosswalk waiting to cross so we only had to wait a few minutes. Ride to the airport was pleasant and quick, driver was fine.
I will use Karmel again. My entire experience was great. My sister's experience left a little to be desired but she said she would use them again.
It is worth mentioning that kids ride free with a paying adult if you get the Karmel vouchers through Getaway Today. (1 kid per paying adult, I think.)
I also saw a couple of blue Super Shuttle vans picking up passengers at our hotel. The "Super Shuttle" had been painted over in blue, but I could still see the words. So it was a plain blue van, no other markings. Not sure who the company behind them is now. Just kind of weird to see.