Modern shower doors can have a lot of different appearances with frameless glass designs and exposed oversized rollers but luxury goes beyond beauty.
A high quality luxury door will have thick glass , typically 3/8 of an inch thick in contrast to the 1/8 thick door designs of days gone by. If you're having a contractor install a tub to shower conversion the best companies realize the value of luxury doors to your projects design, safety and function.
Remember those hard to clean shower doors that always had a soapy film on them. Yuck..... Make sure your new  shower doors have a spotshield technology to avoid the buildup for a cleaner long lasting look.