No major issues for me since day one. I had the occasional panel freeze in the early days, which seemed to be related to exiting holds, and the thing with the minimums where it set itself up for landing at Nagqu. As each hotfix was released, I did a clean install, and whatever was supposed to be fixed was fixed. In fact, I don't recall any problems since HF2. Now, with SP1 and the 600/700 pack, my simming is as smooth as ever. However, I have seen some posts where people still cannot get runway-related custom waypoints to work, and I have not tried this yet, so I don't know. Still, this will be no big issue for me if it happens.So, with the above caveats, I will align myself with the "Zero Problems" Brigade.

I had gotten to where I was doing <100 FPM landings pre-SP and now I'm back to rattling the pax's ribcages. I'll get used to it though.Adam

I recently flew with Ryanair on one of their 800's into Berlin-Schönefeld, with thunderstorms in the area. I'm sure the PF knew exactly what he was doing, but all us items of SLF were still vibrating in baggage claim after he knocked planet Earth out of the way.

No issues, learn to fly the aircraft and you'll be fine.Wycliffe

I had on one freeze on the orig. release. Took FSX folder out of Defender and A/V scans. Fixed it for me. No Hotfixes needed other wise. Did a clean install from original file and added SP1. Had a total freeze of FSX on a flight KPDX to KSFO almost at Cruise. Using PNW settings and scenery, UTX, GEX, REX2. UT2 may have been the issue. On second attempt, same route while clearing out traffic from UT2 no problems entire route.

No issues from day one!!!

This baby fly's smooth and without any CTD at my PC! Never use a Hotfix for the 737NGX.Now i have installed SP1 and the 6/700 and have make some flight in germany and one in US, without any prob, only the dead FMC on my side I noticed, but after a click to the 2D View it's come back to life.Hope that PMDG brings out the SDK soooon, that i can fly with FSCrew in the next weeks !!!!!!

Hi mates, i agreed.zero bugs in my plane right now...................................................................im so happy and waiting for my week paycheck and my 737-600.Regards........................2 CORE4 GB DDR RAM500 GB HDNVIDIA 9400 1 BG.W7-64

i've never had a problem with the NGX from day 1couldnt be happier and i'll be more happy when they release the SDK so i cant get my CPflight MCP/EFIS to light up again

It runs quite smooth, some minor errors had been addressed with previous hot-fixes already. The only thing I observed once in a couple of hours was a "micro-freeze" of the gauges during a climb (for 1-2 seconds, not more). After that one nothing severe having to do directly with the NGX. One time FSX crashed when I wanted to shut it down and one other error message announcing a following shut down of FSX. Both might have to do with a bug in FSX preventing to load two complex planes in single session (even the short freeze might have caused by this one). According to Ryan the PMDG-737NGX-Introduction.pdf suggests a wrong procedure. Actually there should be only one way when changing the aircraft: re-start the sim.

No problems hereoriginal OK and Sp1 even better.

No issues from day one!!!

+1João Alfredo

No problem for me. Today i test the NGX: 4 legs, always IVAP online. No-crash and smoother. Good job. But..............................I hate the new sound that i hear when the wheels touch the runway!!!

Except for no wingflex I am doing pretty fine. I also feel that SP1 has made it even smother.

no issues at all except for a crash sometimes loading situation, awesome softwareis there really wingflex have not seen this

Zero problems ...

No problems just the pilots side FMC blank out as reported above.