Edelbrock Air-Gap intake reviews???

Have it on my 1970 340 , everything lined up , runs great . The off brands , no idea about them , lots of people say they work great , many here say they are junk . I bought the Edelbrock Air-Gap , not the copy .
Only thing is not heat passage and choke mount , so far not a problem , only drive in summer and car always starts right up , light pressure on the pedal 1100 rpm for a minute and it's ready to roll