Business trip - Great Home Base
Have stayed at this Sheraton before - all for business. Yes a big hotel and yes likely to be filled with a conference of some sort (shoe retailers this past time); however they manage crowds very well from check-in/out to getting a drink at the bar or coffee in the morning. May sound trivial, but given I was going in and out of hotel at various times for meetings - the valet service is great -- efficient, good service and great recs on food and nighlife. 
Hotel has good decor, and service. One criticism is their "offer" of $5 voucher if you do not require housekeeping. I thought it was just so no additonal linens and an eco-friendly gesture; it was acutally no housekeeping at all and I did not get chance to use voucher. Smart business model I am sure, but seems chintzy. 
Would definitely recommend for business, and for personal only if in town for a 1 day and want to be near downtown Phoinex the whole time - better resort options abound in the metro area.