There is no difference between a properly cured bar of soap that had been gelled or one that hasn't in terms of quality...there is just a different physical appearance. A gelled soap is more translucent, while an ungelled soap is more matte.
WARNING: Minor science lesson.
The first part is that you have to understand the part that heat plays in the saponification process and you don't have to look any further than Hot Process vs Cold Process soap making. In HP soap, the saponification process is done in a few hours due to the direct application of heat...in CP the process takes 24 to 48 hours because there is no heat other than ambient temperature. When you "gel" your soap, you are applying indirect heat...this can be done via CPOPing, a heating pad/electric blanket, covering and wrapping in towels/blankets, putting in an insulted cooler. Again, heat will speed up the saponification process, but has NO bearing on the quality of your soap...that is your recipe and the second part below.
The second part of soap making is the curing process which is two parts in itself: water evaporation and crystalline structure formation. The first leads to a longer lasting bar of soap, the later leads to a gentler bar of soap. Heat and air circulation can speed up the process of water evaporation...this is based on my unscientific observation of my soap. I cure in my garage and my cure times can very during the seasons...during the Summer when it is dry and in the 80s/90s, my soap is ready in approximately four weeks; during the Spring and Fall, it takes a good six weeks; during the Winter when the temps drop down to the low 40s, I'm looking at a good 10 weeks...12 if we get a lot of rain. I also think that heat plays a small part in the crystalline structure formation and again, unscientific observation of the differences in making Regular Soap vs Goat Milk during the Summer...which requires me to refrigerate my GMS so it doesn't overheat. So while my Regular Soap was ready to go in four weeks, my GMS needed six.