I don't get much pleasure at all from inserting this style! I also get paranoid about hurting my cervix accidentally with the pointy tip. Best to keep these on the clit, I think the shape really lends to grinding on it, which is nice sometimes!
I use a larger massager like that on my clit sometimes. I don't use it because it's large, however I believe the large size is a result of the toy taking C batteries and thus having a stronger motor. I like strong clit vibrations and found that this is the cheapest way to get them.