The Playmate ACE is a great entry level upright ball machine. The Ace offers variable topspin & backspin, electronic variable oscillation to 1, 2, 3 Lines, electronic elevation control and rear mounted control box. The Playmate ACE also includes a friendly, 2 function remote control (On/Off with drill reset) which makes it very easy to use. The Playmate ACE has a 200 ball capacity and comes with a 3 Year Limited Parts Warranty. Please note that the Playmate ACE CANNOT be upgraded to become the Smash, Deuce or Genie. It is also not compatible with the iPLAYMATE controller and therefore cannot utilize the Playmate apps.