I am a 13 year appliance specialist.  The info your friend gave you is incorrect.  The dryer will have no impact on clothes wrinkling.  With new washers, you MUST pay close attention to the cycles and settings you use. 

Your old washer probably did not spin at the end any faster than 400 Rotations per minute, or "RPM".  Your new washer spins at over 1100!  Hence why your clothes are wrinkling. it pulls the fabric terribly if you do not adjust the spin speed, or cycle to more of a delicate setting.  Read your manual-it has this info for you, or call a specialist at Whirlpooll, they are normally very helpful at troubleshooting.  As for Lowe's, the salesperson should know this, and if they didn't inform you, shame on them.

The new machines you will also find do not clean the same.  Again, pay attention to your cycle usage, as you must conform that to what you are washing.  I never wash my expensive clothes on anything but handwash or delicate.  If there is a stain, I am forced to pre-treat it long before it hits the washer.  Your new machine uses no more than 20 gallons/load.  Your old machine used 40-50!  Great for efficiency, terrible for those who are not used to think about what cycles to use and treating stains.

Another thing to consider-if you do not have a water softener and your water is even slightly hard, there will be a more noticeable difference in cleaining. Soft water will have a HUGE impact on how your appliance operates.

Hope all of this helps!  Do not condemn the machine until you have searched out these solutions.  I have never had to take a set back because they are wonderful when used properly-just takes some learning and getting used to!