I too don't expect this thread to last longer than another post but I'll be concise.
They are the same company as Basair and Huntervalley aviation.
The service will vary based on who you are dealing with (Some good some bad).
The company tends to use Sydney Aviators as a testing ground for brand new instructors which probably explains all the young faces.
The aircraft they have are mixed at both ends with some aeroplane's brand new (but at high cost) with all the bells and whistles whilst others are so old that you're thankful the propeller still turns.
They will make you do a check flight first. (ask for what will happen in said ride) really it should be no more than two circuits if you have some experience in the type. [ I know some junior instructors making it a 3 hour affair that was quite unnecessary] If in doubt ask the CFI.
Other than that all I can say is walk in and check it out for yourself and trust your gut.
HR